Reflections on the increase in Autism, ADHD, anxiety and depression: Part 2- Exposure to neurotoxins and ultra-processed foods

Adapted from: Peper, E. & Shuford, J. (2024). Reflections on the increase in Autism, ADHD, anxiety and depression: Part 2- Exposure to neurotoxins and ultra-processed foods. NeuroRegulation, 11(2), 219–228. https://doi.org/10.15540/nr.11.2.219

Summary

Mental health symptoms of attention deficit hyperactivity disorder (ADHD), Autism, anxiety and depression have increased over the last 15 years. An additional risk factor that may affect mental and physical health is the foods we eat.  Even though, our food may look and even taste the same as compared to 50 years ago, it contains herbicide and pesticide residues and often consist of ultra-processed foods. These foods (low in fiber, and high in sugar, animal fats and additives) are a significant part of the American diet and correlate with higher levels of inattention and hyperactivity in children with ADHD. Due to affluent malnutrition, many children are deficient in essential vitamins and minerals. We recommend that before beginning neurofeedback and behavioral treatments, diet and lifestyle are assessed (we call this Grandmother therapy assessment). If the diet appears low in organic foods and vegetable, high in ultra-processed foods and drinks, then nutritional deficiencies should be assessed. Then the next intervention step is to reduce the nutritional deficiencies and implement diet changes from ultra-processed foods to organic whole foods. Meta-analysis demonstrates that providing supplements such as Vitamin D, etc. and reducing simple carbohydrates and sugars and eating more vegetables, fruits and healthy fats during regular meals can ameliorate the symptoms and promote health.

The previous article and blog, Reflections on the increase in Autism, ADHD, anxiety and depression: Part 1-bonding, screen time, and circadian rhythms, pointed out how the changes in bonding, screen time and circadian rhythms affected physical and mental health (Peper, 2023a; Peper, 2023b). However, there are many additional factors including genetics that may contribute to the increase is ADHD, autism, anxiety, depression, allergies and autoimmune illnesses (Swatzyna et al., 2018). Genetics contribute to the risk of attention deficit hyperactivity disorder (ADHD); since, family, twin, and adoption studies have reported that ADHD runs in families (Durukan et al., 2018; Faraone & Larsson, 2019).  Genetics is in most cases a risk factor that may or may not be expressed.  The concept underlying this blog is that genetics loads the gun and environment and behavior pulls the trigger as shown in Figure 1.

Figure 1. Interaction between Genetics and Environment

The pandemic only escalated trends that already was occurring. For example, Bommersbach  et al (2023) analyzed the national trends in mental health-related emergency department visits among USA youth, 2011-2021. They observed that in the USA, Over the last 10 years, the proportion of pediatric ED visits for mental health reasons has approximately doubled, including a 5-fold increase in suicide-related visits.  The mental health-related emergency department visits increased an average of 8% per year while suicide related visits increased 23.1% per year. Similar trends have reported by Braghieri et al (2022) from the National Survey on Drug Use and Health as shown in Figure 2.

Figure 2. Mental health trends in the United States by age group in 2008–2019. The data come from the National Survey on Drug Use and Health. Reproduced with permission from Braghieri, Luca and Levy, Ro’ee and Makarin, Alexey, Social Media and Mental Health (July 28, 2022)  https://ssrn.com/abstract=3919760 or http://dx.doi.org/10.2139/ssrn.3919760

The trends reported from this data shows an increase in mental health illnesses for young people ages 18-23 and 24-29 and no changes for the older groups which could be correlated with the release of the first iPhone 2G on June 29, 2007. Thus, the Covid 19 pandemic and social isolation were not THE CAUSE but an escalation of an ongoing trend. For the younger population, the cellphone has become the vehicle for personal communication and social connections, many young people communicate more with texting than in-person and spent hours on screens which impact sleep (Peper, 2023a). At the same time, there are many other concurrent factors that may contributed to increase of ADHD, autism, anxiety, depression, allergies and autoimmune illnesses.

Without ever signing an informed consent form, we all have participated in lifestyle and environmental changes that differ from that evolved through the process of evolutionary natural selection and promoted survival of the human species.  Many of those changes in lifestyle are driven by demand for short-term corporate profits over long-term health of the population. As exemplified by the significant increase in vaping in young people as a covert strategy to increase smoking (CDC, 2023) or the marketing of ultra-processed foods (van Tulleken, 2023).  

This post focusses how pesticides and herbicides (exposure to neurotoxins) and changes in our food negatively affects our health and well-being and is may be another contributor to the increase risk for developing ADHD, autism, anxiety and depression.  Although our food may look and even taste the same compared to 50 years ago, it is now different–more herbicide and pesticide residues and  is often ultra-processed. lt contains lower levels of nutrients and vitamins such as Vitamin C, Vitamin B2, Protein, Iron, Calcium and Phosphorus than 50 years ago (Davis et al, 2004; Fernandez-Cornejo et al., 2014). Non-organic foods as compared to organic foods may reduce longevity, fertility and survival after fasting (Chhabra et al., 2013).

Being poisoned by pesticide and herbicide residues in food

Almost all foods, except those labeled organic, are contaminated with pesticides and herbicides.  The United States Department of Agriculture reported that “Pesticide use more than tripled between 1960 and 1981. Herbicide use increased more than tenfold (from 35 to 478 million pounds) as more U.S. farmers began to treat their fields with these chemicals” (Fernandez-Cornejo, et al., 2013, p 11). The increase in herbicides and pesticides is correlated with a significant deterioration of health in the United States (Swanson, et al., 2014 as illustrated in the following Figure 3.  

Figure 3. Correlation between Disease Prevalence and Glyphosate Applications (reproduced with permission from Swanson et al., 2014.

Although correlation is not causation and similar relationships could be plotted by correlating consumption of ultra-refined foods, antibiotic use, decrease in physical activity, increase in computer, cellphone and social media use, etc.; nevertheless, it may suggest a causal relationship. Most pesticides and herbicides are neurotoxins and can accumulate in the person over time this could affect physical and mental health (Bjørling-Poulsen et al., 2008; Arab & Mostaflou, 2022). Even though the United States Environmental Protection Agency (EPA) has determined that the residual concentrations in foods are safe, their long-term safety has not been well established (Leoci & Ruberti, 2021). Other countries, especially those in which agribusiness has less power to affect legislation thorough lobbying, and utilize  the research findings from studies not funded by agribusiness, have come to different conclusions…  

For example, the USA allows much higher residues of pesticides such as, Round-Up, with a toxic ingredient glyphosate (0.7 parts per million) in foods than European countries (0.01 parts per million) (Wahab et al., 2022; EPA, 2023; European Commission, 2023) as is graphically illustrated in figure 4.

Figure 4: Percent of Crops Sprayed with Glyphosate and Allowable Glyphosate Levels in the USA versus the EU

The USA allows this higher exposure than the European Union even though about half of the human gut microbiota are vulnerable to glyphosate exposure (Puigbo et al., 2022). The negative effects most likely would be more harmful in a rapidly growing infant than for an adult.  Most likely, some individuals are more vulnerable than others and are the “canary in mine.” They are the early indicators for possible low-level long-term harm.  Research has shown that fetal exposure from the mother (gestational exposure) is associated with an increase in behaviors related to attention-deficit/hyperactivity disorders and executive function in the child when they are 7 to 12 years old (Sagiv et al., 2021).  Also, organophosphate exposure is correlated with ADHD prevalence in children (Bouchard et al., 2010). We hypothesize this exposure is one of the co-factors that have contributed to the decrease in mental health of adults 18 to 29 years. 

At the same time as herbicides and pesticides acreage usage has increased, ultra-processed food have become a major part of the American diet (van Tulleken, 2023). Eating a diet high in ultra-processed foods, low in fiber, high sugar, animal fats  and additives has been associated with higher levels of inattention and hyperactivity in children with ADHD; namely, high consumption of sugar, candy, cola beverages, and non-cola soft drinks and low consumption of fatty fish were also associated with a higher prevalence of ADHD diagnosis (Ríos-Hernández et al., 2017).

In international studies, less nutritional eating behaviors were observed in ADHD risk group as compared to the normal group (Ryu et al., 2022). Artificial food colors and additives are also a public health issue and appear to increase the risk of hyperactive behavior (Arnold et al., 2012).  In a randomized double-blinded, placebo controlled trial 3 and 8/9 year old children had an increase in hyperactive behavior for those whose diet included extra additives (McCann et al., 2007).  The risk may occur during fetal development since poor prenatal maternal is a critical factor in the infants neurodevelopment and is associated with an increased probability of developing ADHD and autism (Zhong et al., 2020; Mengying et al., 2016).

Poor nutrition even affects your unborn grandchild

Poor nutrition not only affects the mother and the developing fetus through epigenetic changes, it also impacts the developing eggs in the ovary of the fetus that can become the future granddaughter (Wilson, 2015). At birth, the baby has all of her eggs.  Thus, there is a scientific basis for the old wives tale that curses may skip a generation. Providing maternal support is even more important since it affects the new born and the future grandchild. The risk may even begin a generation earlier since the grandmother’s poor nutrition as well as stress causes epigenetic changes in the fetus eggs. Thus 50% of the chromosomes of the grandchild were impacted epigenetically by the mother’s and  grandmother’s dietary and health status .

Highly processed foods

Highly refined foods have been processed to remove many of their nutrients. These foods includes white bread, white rice, pasta, and sugary drinks and almost all the fast foods and snacks. These foods are low in fiber, vitamins, and minerals, and they are high in sugars, unhealthy fats, and calories. In addition, additives may have been added to maximize taste and mouth feel and implicitly encourage addiction to these foods. A diet high in refined sugars and carbohydrates increases the risk of diabetes and can worsen the symptoms of ADHD, autism, depression, anxiety and increase metabolic disease and diabetes (Woo et al., 2014; Lustig, 2021; van Tulleken, 2023). Del-Ponte et al. (2019) noted that a diet high in refined sugar and saturated fat increased the risk of symptoms of ADHD, whereas a healthy diet, characterized by high consumption of fruits and vegetables, would protect against the symptoms.

Most likely, a diet of highly refined foods may cause blood sugar to spike and crash, which can lead to mood swings, irritability, anxiety, depression and cognitive decline  and often labeled as “hangryness” (the combination of anger and hunger) (Gomes et al., 2023; Barr et al., 2019). At the same time a Mediterranean diet improves depression significantly more than the befriending control group (Bayles et al., 2022).  In addition, refined foods are low in essential vitamins and minerals as well as fiber. Not enough fiber can slow down digestion, affect the human biome, and makes it harder for the body to absorb nutrients. This can lead to nutrient deficiencies, which can contribute to the symptoms of ADHD, autism, depression, and anxiety. Foods do impact our mental and physical health as illustrated by foods that tend to reduce depression (LaChance & Ramsey, 2018; MacInerney et al., 2017). By providing appropriate micronutrients such as minerals (Iron, Magnesium Zinc), vitamins (B6, B12, B9 and D), Omega 3s (Phosphatidylserine) and changing our diet, ADHD symptoms can be ameliorated.

Many children with ADHD, anxiety, depression are low on essential vitamins and minerals.  For example, low levels of Omega-3 fatty acids and vitamin D may be caused by eating ultra-refined foods, fast foods, and drinking soft drink. At the same time, the children are sitting more in indoors in front of the screen and thereby have lower sun exposure that is necessary for the vitamin D production.

“Because of lifestyle changes and sunscreen use, about 42% of Americans are deficient in vitamin D. Among children between 1 to 11 years old, an estimated 15% have vitamin D deficiency. And researchers have found that 17% of adolescents and 32% of young adults were deficient in vitamin D.” (Porto and Abu-Alreesh, 2022).

Reduced sun exposure is even more relevant for people of color (and older people); since, their darker skin (increased melanin) protects them from ultraviolet light damage but at the same time reduces the skins production of vitamin D.  Northern Europeans were aware of the link between sun exposure and vitamin D production.  To prevent rickets (a disease caused by vitamin D deficiency) and reduce upper respiratory tract infections the children were given a tablespoon of cod liver oil to swallow (Linday, 2010).  Cod liver oil, although not always liked by children, is more nutritious than just taking a Vitamin D supplements. It is a whole food and a rich source of vitamin A and D as well as containing a variety of Omega 3 fatty acids (eicosapentaenoic acid (EPA) (USDA, 2019).

Research studies suggest that ADHD can be ameliorated with nutrients, and herbs supplements (Henry & CNS, 2023). Table 1 summarizes some of the nutritional deficits observed and the reduction of ADHD symptoms when nutritional supplements were given (adapted from Henry, 2023; Henry & CNS, 2023). 

Nutritional deficits observed in people with ADHDDecrease in ADHD symptoms with nutritional supplements
Vitamin D: In meta-analysis with a total number of 11,324 children, all eight trials reported significantly lower serum concentrations of 25(OH)D in patients diagnosed with ADHD compared to healthy controls. (Kotsi et al, 2019)After 8 weeks children receiving vitamin D (50,000 IU/week) plus magnesium (6 mg/kg/day) showed a significant reduction in emotional problems as observed in a randomized, double blind, placebo-controlled clinical trial (Hemamy et al., 2021).
Iron:  In meta-analysis lower serum ferritin was associated with ADHD in children (Wang et al., 2017) and the mean serum ferritin levels are lower in the children with ADHD than in the controls (Konofal et al., 2004).After 12 weeks of supplementation with Iron (ferrous sulfate) in double-blind, randomized placebo-controlled clinical trial, clinical trials  symptoms of in children with ADHD as compared to controls were reduced (Tohidi et al., 2021Pongpitakdamrong et all, 2022).
Omega 3’s: Children with ADHD are more likely to be deficient in omega 3’s than children without ADHD (Chang et al., 2017).Adding Omega-3 supplements to their diet resulted in an improvement in hyperactivity, impulsivity, learning, reading and short term memory as compared to controls in 16 randomized controlled trials including 1514 children and young adults with ADHD (Derbyshire, 2017)
Magnesium: In meta-analysis, subjects with ADHD had  lower serum magnesium levels compared with to their healthy controls  (Effatpahah et al., 2019)  8 weeks of supplementation with Vitamin D and magnesium caused a significant decrease in children with conduct problems, social problems, and anxiety/shy scores (Hemamy et al., 2020).
Vitamin B2, B6, B9  and B12deficiency has been found in many patients with Attention Deficit and Hyperactivity Disorder (Landaas et al, 2016; Unal et al., 2019).Vitamin therapy appears to reduce symptoms of ADHD and ASD (Poudineh et al., 2023; Unal et al., 2019). An 8 weeks supplementing with Vitamin B6 and magnesium decreased hyperactivity and hyperemotivity/aggressiveness.  When supplementation was stopped, clinical symptoms of the disease reappeared in few weeks (Mousain-Bosc et al., 2006).

Table 1. Examples of vitamin and mineral deficiencies associated with symptoms of ADHD and supplementation to reduction of ADHD symptoms.

Supplementation of vitamins and minerals in many cases consisted of more than one single vitamin or mineral. For an in-depth analysis and presentation, see the superb webinar by Henry & CNS (2023):  https://divcom-events.webex.com/recordingservice/sites/divcom-events/recording/e29cefcae6c1103bb7f3aa780efee435/playback?  (Henry & CNS, 2023).

Whole foods are more than the sum of individual parts (the identified individual constituents/nutrients). The process of digestion is much more complicated than ingesting simple foods with added vitamins or minerals.  Digestion is the interaction of many food components (many of which we have not identified) which interact and affect the human biome. A simple added nutrient can help; however, eating whole organic foods it most likely be healthier.  For example, whole-wheat flour is much more nutritious. Whole wheat is rich in vitamins B-1, B-3, B-5, riboflavin, folate well as fiber while refined white flour has been bleached and stripped of fiber and nutrients to which some added vitamins and iron are added.

Recommendation

When working with clients, follow Talib’s principles as outlined in Part 1 by Peper (2023) which suggests that to improve health first remove the unnatural which in this case are the ultra-processed foods, simple carbohydrates, exposure to pesticides and herbicides (Taleb, 2014). The approach is beneficial for prevention and treatment. This recommendation to optimize health is both very simple and very challenging. The simple recommendation is to eat only organic foods and as much variety as possible as recommended by Professor Michael Pollan in his books, Omnivore’s Dilemma: A Natural History of Four Meals and Food Rules  (Pollan, 2006; Pollan, 2011).

Do not eat foods that contain herbicides and pesticide residues or are ultra-processed.   Although organic foods especially vegetable and fruits are often much more expensive, you have choice: You can pay more now to optimize health or pay later to treat disease. Be safe and not sorry.  This recommendation is similar to the quote, “Let food be thy medicine and medicine be thy food,” that has been attributed falsely since the 1970s to Hippocrates, the Greek founder of western medicine (5th Century, BC) (Cardenas, 2013).

There are many factors that interfere with implementing these suggestions; since, numerous people live in food deserts (no easy access to healthy unprocessed foods ) or food swamps (a plethora of fast food outlets) and  54 million Americans are food insecure (Ney, 2022). In addition, we and our parents have been programmed by the food industry advertising to eat the ultra- processed foods and may no longer know how to prepare healthy foods such as exemplified by a Mediterranean diet. Recent research by Bayles et al (2022) has shown that eating a Mediterranean diet improves depression significantly more than the befriending control group. In addition, highly processed foods and snacks are omnipresent, often addictive and more economical.

Remember that clients are individuals and almost all research findings are based upon group averages. Even when the data implies that a certain intervention is highly successful, there are always some participants for whom it is very beneficial and some for whom it is ineffective or even harmful.  Thus, interventions need to be individualized for which there is usually only very limited data. In most cases, the original studies did not identify the characteristics of those who were highly successful or those who were unsuccessful.  In addition, when working with specific individuals with ADHD, anxiety, depression, etc. there are multiple possible causes.  

Before beginning specific clinical treatment such as neurofeedback and/or medication, we recommend the following:

  1.  “Grandmother assessment” that includes and assessment of screen time, physical activity, outdoor sun exposure, sleep rhythm as outlined in Part 1 by Peper (2023). Then follow-up with a dietary assessment that investigates the prevalence of organic/non organic foods, ingestion of fast foods, ultra-processed foods, soft drinks, high simple carbohydrate and sugar, salty/sugary/fatty snacks, fruits, vegetables, and eating patterns (eating  with  family or by themselves in front of screens). Be sure to include an assessment of emotional reactivity and frequency of irritability and “hangryness”.
  2. If the assessment suggest low level of organic whole foods and predominance of ultra- refined foods, it may be possible that the person is deficient in vitamins and minerals. Recommend that the child is tested for the vitamin deficiencies. If vitamin deficiencies identified, recommend to supplement the diet with the necessary vitamins and mineral and encourage eating foods that naturally include these substances (Henry & CNS, 2023). If there is a high level of emotional reactivity and “hangryness,” a possible contributing factor could be hypoglycemic rebound from a high simple carbohydrate (sugar) intake or not eating breakfast combined with hyperventilation (Engel et al., 1947; Barr et al., 2019). Recommend eliminating   simple carbohydrate breakfast and fast food snacks and substitute organic foods that include complex carbohydrates, protein, fats, vegetables and fruit. Be sure to eat breakfast.
  3. Implement “Grandmother Therapy”. Encourage the family and child to change their diet to eating a whide variety of organic foods (vegetables, fruits, some fish, meat and possibly dairy) and eliminate simple carbohydrates and sugars.  This diet will tend to reduce nutritional deficits and may eliminate the need for supplements. 
  4. Concurrent with the stabilization of the physiology begin psychophysiological treatment strategies such as neurofeedback biofeedback and cognitive behavior therapy.

Relevant blogs

Author Disclosure

Authors have no grants, financial interests, or conflicts to disclose.

References

Arnold, L, Lofthouse, N., & Hurt, E. (2012). Artificial food colors and attention-deficit/hyperactivity symptoms: conclusions to dye for. Neurotherapeutics, 9(3), 599-609. https://doi.org/10.1007/s13311-012-0133-x

Arab, A. &  Mostafalou, S. (2022). Neurotoxicity of pesticides in the context of CNS chronic diseases. International Journal of Environmental Health Research32(12), 2718-2755. https://doi.org/10.1080/09603123.2021.1987396

Barr, E.A., Peper, E., & Swatzyna, R.J. (2019). Slouched Posture, Sleep Deprivation, and Mood Disorders: Interconnection and Modulation by Theta Brain Waves. NeuroRegulation, 6(4), 181–189.  https://doi.org/10.15540/nr.6.4.181

Bayes. J., Schloss, J., Sibbritt, D. (2022). The effect of a Mediterranean diet on the symptoms of depression in young males (the “AMMEND: A Mediterranean Diet in MEN with Depression” study): a randomized controlled trial. Am J Clin Nutr. 116(2), 572-580. https://doi.org/10.1093/ajcn/nqac106

Bjørling-Poulsen, M., Andersen, H.R. & Grandjean, P. Potential developmental neurotoxicity of pesticides used in Europe. Environ Health 7, 50 (2008). https://doi.org/10.1186/1476-069X-7-50

Bommersbach, T.J., McKean, A.J., Olfson, M., Rhee, T.G. (2023).  National Trends in Mental Health–Related Emergency Department Visits Among Youth, 2011-2020. JAMA, 329(17):1469–1477. https://doi.org/10.1001/jama.2023.4809

Bouchard, M.F., Bellinger, D.C., Wright, R.O., & Weisskopf, M.G. (2010).  Attention-deficit/hyperactivity disorder and urinary metabolites of organophosphate pesticides. Pediatrics, 125(6), e1270-7. https://doi.org/10.1542/peds.2009-3058

Braghieri, L., Levy, R., & Makarin, A. (2022). Social Media and Mental Health (July 28, 2022). Available at SSRN: https://ssrn.com/abstract=3919760 or http://dx.doi.org/10.2139/ssrn.3919760

Cardenas, D. (2013). Let not thy food be confused with thy medicine: The Hippocratic misquotation. e-Spen Journal, 8(6), 3260-3262. https://doi.org/10.1016/j.clnme.2013.10.002

CDC, (2023). Quick Facts on the Risks of E-cigarettes for Kids, Teens, and Young Adults. CDC. Centers for Disease Control and Prevention. Accessed September 23, 2023. https://www.cdc.gov/tobacco/basic_information/e-cigarettes/Quick-Facts-on-the-Risks-of-E-cigarettes-for-Kids-Teens-and-Young-Adults.html

Chang, J.C., Su, K.P., Mondelli, V. et al. Omega-3 Polyunsaturated Fatty Acids in Youths with Attention Deficit Hyperactivity Disorder: a Systematic Review and Meta-Analysis of Clinical Trials and Biological Studies. Neuropsychopharmacol. 43, 534–545. https://doi.org/10.1038/npp.2017.160

Chhabra, R., Kolli, S., & Bauer, J.H. (2013). Organically Grown Food Provides Health Benefits to Drosophila melanogaster. PLoS ONE, 8(1): e52988. https://doi.org/10.1371/journal.pone.0052988

Davis, D. R., Epp, M. D., & Riordan, H. D. (2004). Changes in USDA food composition data for 43 garden crops, 1950 to 1999. Journal of the American College of Nutrition, 23(6), 669-682. https://doi.org/10.1080/07315724.2004.10719409

Derbyshire, E. (2017). Do Omega-3/6 Fatty Acids Have a Therapeutic Role in Children and Young People with ADHD? J Lipids. 6285218. https://doi.org/10.1155/2017/6285218

Del-Ponte, B., Quinte, G.C., Cruz, S., Grellert, M., & Santos, I. S. Dietary patterns and attention deficit/hyperactivity disorder (ADHD): A systematic review and meta-analysis.  Journal of Affective Disorders, 252, 160-173.  https://doi.org/10.1016/j.jad.2019.04.061

Durukan, İ., Kara, K., Almbaideen, M., Karaman, D., & Gül, H. (2018). Alexithymia, depression and anxiety in parents of children with neurodevelopmental disorder: Comparative study of autistic disorder, pervasive developmental disorder not otherwise specified and attention deficit-hyperactivity disorder. Pediatrics International, 60(3), 247–253. https://doi.org/10.1111/ped.13510

Effatpanah, M., Rezaei, M., Effatpanah, H., Effatpanah, Z., Varkaneh, H.K., Mousavi. S.M., Fatahi, S., Rinaldi, G., & Hashemi, R. (2019). Magnesium status and attention deficit hyperactivity disorder (ADHD): A meta-analysis. Psychiatry Res, 274, 228-234. https://doi.org/10.1016/j.psychres.2019.02.043

Engel, G.L., Ferris, E.B., & Logan, M. (1947). Hyperventilation; analysis of clinical symptomatology. Ann Intern Med, 27(5), 683-704. https://doi.org/10.7326/0003-4819-27-5-683

EPA. (2023). Glyphosate. United States Environmental Protection Agency. Accessed April 1, 2023. https://www.epa.gov/ingredients-used-pesticide-products/glyphosate

European Commission. (2023). EU legislation on MRLs.Food Safety. Assessed April 1, 2023. https://food.ec.europa.eu/plants/pesticides/maximum-residue-levels/eu-legislation-mrls_en#:~:text=A%20general%20default%20MRL%20of,e.g.%20babies%2C%20children%20and%20vegetarians

Faraone, S.V. & Larsson, H. (2019). Genetics of attention deficit hyperactivity disorder. Mol Psychiatry, 24(4), 562-575. https://doi.org/10.1038/s41380-018-0070-0

Fernandez-Cornejo, J. Nehring, R, Osteen, C., Wechsler, S., Martin, A., & Vialou, A. (2014). Pesticide use in the U.S. Agriculture: 21 Selected Crops, 1960-2008. Economic Information Bulletin Number 123, United State Department of Agriculture. https://www.ers.usda.gov/webdocs/publications/43854/46734_eib124.pdf

Gomes, G. N., Vidal, F. N., Khandpur. N., et al. (2023). Association Between Consumption of Ultraprocessed Foods and Cognitive Decline. JAMA Neurol, 80(2),142–150. https://doi.org/10.1001/jamaneurol.2022.4397

Hemamy, M., Heidari-Beni, M., Askari, G., Karahmadi, M., & Maracy, M. (2020). Effect of Vitamin D and Magnesium Supplementation on Behavior Problems in Children with Attention-Deficit Hyperactivity Disorder. Int J Prev Med, 11(1), 4. https://doi.org/10.4103/ijpvm.IJPVM_546_17

Henry, K. (2023). An Integrative Medicine Approach to ADHD. Rupa Health. Accessed September 30, 2023. https://www.rupahealth.com/post/an-integrative-medicine-approach-to-adhd

Henry, K. & CNS, L.A. (2023). Natural treatments for ADHD. Webinar Presentation by IntegrativePractitioner.com and sponsored by Rupa Health, June 6, 2023 https://divcom-events.webex.com/recordingservice/sites/divcom-events/recording/e29cefcae6c1103bb7f3aa780efee435/playback?

Hemamy, M., Pahlavani, N., Amanollahi, A. et al. (2021). The effect of vitamin D and magnesium supplementation on the mental health status of attention-deficit hyperactive children: a randomized controlled trial. BMC Pediatr, 21, 178. https://doi.org/10.1186/s12887-021-02631-1

Konofal, E., Lecendreux, M., Arnulf, I., & Mouren, M. (2004). Iron Deficiency in Children With Attention-Deficit/Hyperactivity Disorder. Arch Pediatr Adolesc Med, 158(12), 1113–1115. https://doi.org/10.1001/archpedi.158.12.1113

Kotsi, E., Kotsi, E. & Perrea, D.N. (2019). Vitamin D levels in children and adolescents with attention-deficit hyperactivity disorder (ADHD): a meta-analysis. ADHD Atten Def Hyp Disord, 11, 221–232. https://doi.org/10.1007/s12402-018-0276-7

LaChance, L.R. & Ramsey, D. (2018). Antidepressant foods: An evidence-based nutrient profiling system for depression. World J Psychiatr, 8(3): 97-104. World J Psychiatr., 8(3): 97-104.  https://doi.org/10.5498/wjp.v8.i3.97

Landaas, E.T., Aarsland, T.I., Ulvik, A., Halmøy, A., Ueland. P.M., & Haavik, J. (20166). Vitamin levels in adults with ADHD. BJPsych Open, 2(6), 377-384. https://doi.org/10.1192/bjpo.bp.116.003491

Linday, L.A. (2010). Cod liver oil, young children, and upper respiratory tract infections. J Am Coll Nutr, 29(6), 559-62. https://doi.org/10.1080/07315724.2010.10719894

Leoci, R. & Ruberti, M. (2021) Pesticides: An Overview of the Current Health Problems of Their Use. Journal of Geoscience and Environment Protection9, 1-20. https://doi.org/10.4236/gep.2021.98001

Lustig, R.H. (2021). Metaboical: The lure and the lies of processed food, nutrition, and modern medicine. New York: Harper Wave. https://www.amazon.com/Metabolical-processed-poisons-people-planet/dp/1529350077

MacInerney, E. K., Swatzyna, R. J., Roark, A. J., Gonzalez, B. C., & Kozlowski, G. P. (2017). Breakfast choices influence brainwave activity: Single case study of a 12-year-old female. NeuroRegulation, 4(1), 56–62. https://doi.org/10.15540/nr.4.1.56

McCann, D., Barrett, A., Cooper, A., Crumpler, D., Dalen, L., Grimshaw, K., et al. (2007). Food additives and hyperactive behavior in 3-year old and 8/9-year-old children in the community: a randomized, double-blinded, placebo-controlled trial. Lancet, 370(9598), 1560-1567. https://doi.org/10.1016/S0140-6736(07)61306-3

Mengying, L.I,   Fallin, A, D., Riley,A., Landa, R.,  Walker, S.O., Silverstein, M., Caruso, D., et al. (2016).   The Association of Maternal Obesity and Diabetes With Autism and Other Developmental Disabilities. Pediatrics, 137(2), e20152206. https://doi.org/10.1542/peds.2015-2206

Mousain-Bosc, M., Roche, M., Polge, A., Pradal-Prat, D., Rapin, J., & Bali, J.P. (2006). Improvement of neurobehavioral disorders in children supplemented with magnesium-vitamin B6. I. Attention deficit hyperactivity disorders. Magnes Res. 19(1), 46-52. https://pubmed.ncbi.nlm.nih.gov/16846100/#:~:text=In%20almost%20all%20cases%20of,increase%20in%20Erc%2DMg%20values.

Ney, J. (2022). Food Deserts and Inequality.  Social Policy Data Lab. Updated: Jan 24, 2022.  Accessed September, 23, 2023. https://www.socialpolicylab.org/post/grow-your-blog-community

Peper, E. (2023a). Reflections on the increase in Autism, ADHD, anxiety and depression: Part 1-bonding, screen time, and circadian rhythms. the peperperspective July 2, 2023. Accessed august 8, 2024, https://peperperspective.com/2023/07/04/reflections-on-the-increase-in-autism-adhd-anxiety-and-depression-part-1-bonding-screen-time-and-circadian-rhythms/

Peper, E. (2023b). Reflections on the increase in Autism, ADHD, anxiety and depression: Part 1-bonding, screen time, and circadian rhythms. NeuroRegulation, 10(2), 134-138. https://doi.org/10.15540/nr.10.2.134

Pollan, M. (2006). Omnivore’s Dilemma: A Natural History of Four Meals and Food Rules. New York Penguin Press. https://www.amazon.com/Omnivores-Dilemma-Natural-History-Meals/dp/1594200823/ref=tmm_hrd_swatch_0?_

Pollan, M. (2011). Food rules. New York Penguin Press. https://www.amazon.com/Food-Rules-Eaters-Michael-Pollan/dp/B00VSBILFG/ref=tmm_hrd_swatch_0?

Pongpitakdamrong, A., Chirdkiatgumchai, V., Ruangdaraganon, N., Roongpraiwan, R., Sirachainan, N., Soongprasit, M., & Udomsubpayakul, U. (2022).  Effect of Iron Supplementation in Children with Attention-Deficit/Hyperactivity Disorder and Iron Deficiency: A Randomized Controlled Trial. Journal of Developmental & Behavioral Pediatrics, 43(2), 80-86., https://doi.org/10.1097/DBP.0000000000000993

Porto, A. & Abu-Alreesh, S. (2022). Vitamin D for babies, children & adolescents. Health Living.  Healthychildren.org. Accessed September 24, 2023. https://www.healthychildren.org/English/healthy-living/nutrition/Pages/vitamin-d-on-the-double.aspx#

Poudineh, M.,  Parvin, S., Omidali, M., Nikzad, F., Mohammadyari, F., Sadeghi Poor Ranjbar, F., F., Nanbakhsh, S., & Olangian-Tehrani, S. (2023). The Effects of Vitamin Therapy on ASD and ADHD: A Narrative Review. CNS & Neurological Disorders – Drug Targets (Formerly Current Drug Targets – CNS & Neurological Disorders), (22),  5, 2023, 711-735. https://doi.org/10.2174/1871527321666220517205813

Puigbò, P., Leino, L. I., Rainio, M. J., Saikkonen, K., Saloniemi, I., & Helander, M. (2022). Does Glyphosate Affect the Human Microbiota?. Life12(5), 707. https://doi.org/10.3390/life12050707

Ríos-Hernández, A., Alda, J.A., Farran-Codina, A., Ferreira-García, E., & Izquierdo-Pulido, M. (2017). The Mediterranean Diet and ADHD in Children and Adolescents. Pediatrics, 139(2):e20162027. https://doi.org/10.1542/peds.2016-2027

Ryu, S.A., Choi, Y.J., An, H., Kwon, H.J., Ha, M., Hong, Y.C., Hong, S.J., & Hwang, H.J. (2022). Associations between Dietary Intake and Attention Deficit Hyperactivity Disorder (ADHD) Scores by Repeated Measurements in School-Age Children. Nutrients, 14(14), 2919. https://doi.org/10.3390/nu14142919

Sagiv, S.K., Kogut, K., Harley, K., Bradman, A., Morga, N., & Eskenazi, B. (2021). Gestational Exposure to Organophosphate Pesticides and Longitudinally Assessed Behaviors Related to Attention-Deficit/Hyperactivity Disorder and Executive Function, American Journal of Epidemiology, 190(11), 2420–2431.  https://doi.org/10.1093/aje/kwab173

Swanson, N.L., Leu, A., Abrahamson, J., & Wallet, B. (2014). Genetically engineered crops, glyphosate and the deterioration of health in the United States of America. Journal of Organic Systems, 9(2), 6-17. https://www.organic-systems.org/journal/92/JOS_Volume-9_Number-2_Nov_2014-Swanson-et-al.pdf

Swatzyna, R. J., Boutros, N. N., Genovese, A. C., MacInerney, E. K., Roark, A. J., & Kozlowski, G. P. (2018). Electroencephalogram (EEG) for children with autism spectrum disorder: Evidential considerations for routine screening. European Child & Adolescent Psychiatry, 28(5), 615–624. https://doi.org/10.1007/s00787-018-1225-x

Taleb, N. N. (2014). Antifragile: Things That Gain from Disorder (Incerto). New York:  Random House Publishing Group. https://www.amazon.com/Antifragile-Things-That-Disorder-Incerto/dp/0812979680/ref=tmm_pap_swatch_0

Tohidi, S., Bidabadi, E., Khosousi, M.J., Amoukhteh, M., Kousha, M., Mashouf, P., Shahraki, T. (2021). Effects of Iron Supplementation on Attention Deficit Hyperactivity Disorder in Children Treated with Methylphenidate. Clin Psychopharmacol Neurosci, 19(4), 712-720. https://doi.org/10.9758/cpn.2021.19.4.712

Unal, D. Çelebi, F., Bildik,H.N.,   Koyuncu, A.,  &  Karahan, S. (2019). Vitamin B12 and haemoglobin levels may be related with ADHD symptoms: a study in Turkish children with ADHD, Psychiatry and Clinical Psychopharmacology29(4), 515-519. https://doi.org/10.1080/24750573.2018.1459005

USDA. (2019). Fish oil, cod liver. FoodData Central. USDA U.S> Department of Agriculture. Published 4/1/2019. Accessed September 24, 2024. https://fdc.nal.usda.gov/fdc-app.html#/food-details/173577/nutrients

Van Tulleken, C. (2023). Ultra-Processed People. The Science Behind Food That Isn’t Food. New York: W.W. Norton & Company. https://www.amazon.com/Ultra-Processed-People-Science-Behind-Food/dp/1324036729/ref=asc_df_1324036729/?

Wahab, S., Muzammil, K., Nasir, N., Khan, M.S., Ahmad, M.F., Khalid, M., Ahmad, W., Dawria, A., Reddy, L.K.V., & Busayli, A.M. (2022). Advancement and New Trends in Analysis of Pesticide Residues in Food: A Comprehensive Review. Plants (Basel), 11(9), 1106. https://doi.org/10.3390/plants11091106

Wang. Y., Huang, L., Zhang, L., Qu, Y., & Mu, D. (2017). Iron Status in Attention-Deficit/Hyperactivity Disorder: A Systematic Review and Meta-Analysis. PLoS One, 12(1):e0169145. https://doi.org/10.1371/journal.pone.0169145

Wilson, L. (2015). Mothers, beware: Your lifestyle choices will even affect your grandkids.
News Corp Australia Network. Accessed Jun 24, 2024. https://www.news.com.au/lifestyle/parenting/kids/mothers-beware-your-lifestyle-choices-will-even-affect-your-grandkids/news-story/3f326f457546cfb32af5c409f335fb56

Woo, H.D.,; Kim, D.W., Hong, Y.-S., Kim, Y.-M.,Seo, J.-H.,; Choe, B.M., Park, J.H.,; Kang, J.-W., Yoo, J.-H.,; Chueh, H.W., et al. (2014). Dietary Patterns in Children with Attention Deficit/Hyperactivity Disorder (ADHD). Nutrients6, 1539-1553. https://doi.org/10.3390/nu6041539

Zhong, C., Tessing, J., Lee, B.K.,  Lyall, K. Maternal Dietary Factors and the Risk of Autism Spectrum Disorders: A Systematic Review of Existing Evidence. Autism Res,13(10),1634-1658. https://doi.org/10.1002/aur.2402

 



Is mindfulness training old wine in new bottles?

Adapted from: Peper, E., Harvey, R., & Lin, I-M. (2019).  Mindfulness training has themes common to other technique. Biofeedback. 47(3), 50-57.  https://doi.org/10.5298/1081-5937-47.3.02

This extensive blog discusses the benefits of mindfulness-based meditation (MM) techniques and explores how similar beneficial outcomes occur with other mind-centered practices such as transcendental meditation, and body-centered practices such as progressive muscle relaxation (PMR), autogenic training (AT), and yoga. For example, many standardized mind-body techniques such as mindfulness-based stress reduction and mindfulness-based cognitive therapy (a) are associated with a reduction in symptoms of symptoms such as anxiety, pain and depression. This article explores the efficacy of mindfulness based techniques to that of other self-regulation techniques and identifies components shared between mindfulness based techniques and several previous self-regulation techniques, including PMR, AT, and transcendental meditation. The authors conclude that most of the commonly used self-regulation strategies have comparable efficacy and share many elements.

Mindfulness-based strategies are based in ancient Buddhist practices and have found acceptance as one of the major contemporary behavioral medicine techniques (Hilton et al, 2016; Khazan, 2013).  Throughout this blog the term mindfulness will refer broadly to a mental state of paying total attention to the present moment, with a non-judgmental awareness of the inner and/ or outer experiences (Baer et al., 2004; Kabat-Zinn, 1994).

In 1979, Jon Kabat-Zinn introduced a manual for a standardized Mindfulness-Based Stress Reduction (MBSR) program at the University of Massachusetts Medical Center (Kabat-Zinn, 1994, 2003).  The eight-week program combined mindfulness as a form of insight meditation with specific types of yoga breathing and movements exercises designed to focus on awareness of the mind and body, as well as thoughts, feelings, and behaviors. 

There is a substantial body of evidence that mindfulness-based cognitive therapy (MBCT); Teasdale et al., 1995) and mindfulness-based stress reduction (MBSR) (Kabat-Zinn, 1994, 2003) have combined with skills of cognitive therapy for ameliorating stress symptoms such as negative thinking, anxiety and depression.  For example, MBSR and MBCT has been confirmed to be clinical beneficial in alleviating a variety of mental and physical conditions, for people dealing with anxiety, depression, cancer-related pain and anxiety, pain disorder, or high blood pressure (The following are only a few of the hundred studies published: Andersen et al., 2013; Carlson et al., 2003; Fjorback et al., 2011; Greeson, & Eisenlohr-Moul, 2014; Hoffman et al., 2012; Marchand, 2012; Baer, 2015; Demarzo et al., 2015; Khoury et al, 2013; Khoury et al, 2015; Chapin et al., 2014; Witek Janusek et al., 2019).  Currently, MBSR and MBCT techniques that are more standardized are widely applied in schools, hospitals, companies, prisons, and other environments. 

The Relationship Between Mindfulness and Other Self-Regulation Techniques

This section addresses two questions: First, how do mindfulness-based interventions compare in efficacy to older self-regulation techniques? Second, and perhaps more basically, how new and different are mindfulness-based therapies from other self-regulation-oriented practices and therapies?

Is mindfulness more effective than other mind/body body/mind approaches?

Although mindfulness-based meditation (MM) techniques are effective, it does not mean that is is more effective than other traditional meditation or self-regulation approaches.  To be able to conclude that MM is superior, it needs to be compared to equivalent well-coached control groups where the participants were taught other approaches such as progressive relaxation, autogenic training, transcendental meditation, or biofeedback training. In these control groups, the participants would be taught by practitioners who were self-experienced and had mastered the skills and not merely received training from a short audio or video clip (Cherkin et al, 2016). The most recent assessment by the National Centere for Complementary and Integrative Health, National Institutes of Health (NCCIH-NIH, 2024) concluded that generally “the effects of mindfulness meditation approaches were no different than those of evidence-based treatments such as cognitive behavioral therapy and exercise especially when they include how to generalize the skills during the day” (NCCIH, 2024). Generalizing the learned skills into daily life contributes to the  successful outcome of Autogenic Training, Progressive Relaxation, integrated biofeedback stress management training, or the Quieting Response (Luthe, 1979; Davis et al., 2019; Wilson et al., 2023; Stroebel, 1982).

Unfortunately, there are few studies that compare the effective of mindfulness meditation to other sitting mental techniques such as Autogenic Training, Transcendental Meditation or similar meditative practices that are used therapeutically.  When the few randomized control studies of MBSR versus autogenic training (AT) was done, no conclusions could be drawn as to the superior stress reduction technique among German medical students (Kuhlmann et al., 2016).

Interestingly, Tanner, et al (2009) in a waitlist study of students in Washington, D.C. area universities practicing TM used the concept of mindfulness, as measured by the Kentucky Inventory of Mindfulness Skills (KIM) (Baer et al, 2004)  as a dependent variable, where TM practice resulted in greater degrees of ‘mindfulness.’ More direct comparisons of MM with body-focused techniques, such as progressive relaxation, or Autogenic training mindfulness-based approaches, have not found superior benefit.  For example, Agee et al (2009) compared the stress management effects of a five-week Mindfulness Meditation (MM) to a five-week Progressive Muscle Relaxation (PMR) course and found no meaningful reports of superiority of one over the other program; both MM and PMR were effective in reducing symptoms of stress. 

In a persuasive meta-analysis comparing MBSR with other similar stress management techniques used among military service members, Crawford, et al (2013) described various multimodal programs for addressing post-traumatic stress disorder (PTSD) and other military or combat-related stress reactions.  Of note, Crawford, et al (2013) suggest that all of the multi-modal approaches that include Autogenic Training, Progressive Muscle Relaxation, movement practices including Yoga and Tai Chi, as well as Mindfulness Meditation, and various types of imagery, visualization and prayer-based contemplative practices ALL provide some benefit to service members experiencing PTSD. 

An important observation by Crawford et al (2013) pointed out that when military service members had more physical symptoms of stress, the meditative techniques appeared to work best, and when the chief complaints were about cognitive ruminations, the body techniques such as Yoga or Tai Chi worked best to reduce symptoms.  Whereas it may not be possible to say that mindfulness meditation practices are clearly superior to other mind-body techniques, it may be possible to raise questions about mechanisms that unite the mind-body approaches used in therapeutic settings.

Could there be negative side effects?

Another point to consider is the limited discussion of the possible absence of benefit or even harms that may be associated with mind-body therapies. For example, for some people, meditation does not promote prosocial behavior (Kreplin et al, 2018). For other people, meditation can evoke negative physical and/or psychological outcomes (Lindahl et al, 2017; Britton et al., 2021).  There are other struggles with mind-body techniques when people only find benefit in the presence of a skilled clinician, practitioner, or guru, suggesting a type of psychological dependency or transference, rather than the ability to generalize the benefits outside of a set of conditions (e.g. four to eight weeks of one to four hour trainings) or a particular setting (e.g. in a natural and/or quiet space). 

Whereas the detailed instructions for many mindfulness meditation trainings, along with many other types of mind-body practices (e.g. Transcendental Meditation, Autogenic Training, Progressive Muscle Relaxation, Yoga, Tai Chi…)  create conditions that are laudable because they are standardized, a question is raised as to ‘critical ingredients’, using the metaphor of baking.  The difference between a chocolate and a vanilla cake is not ingredients such as flour, or sugar, etc., which are common to all cakes, but rather the essential or critical ingredient of the chocolate or vanilla flavoring.  So what are the essential or critical ingredients in mind-body techniques?  Extending the metaphor, Crawford, et al (2013, p. 20) might say the critical ingredient common to the mind-body techniques they studied was that people “can change the way their body and mind react to stress by changing their thoughts, emotions, and behaviors…” with techniques that, relatively speaking, “involve minimal cost and training time.”

The skeptical view suggested here is that MM techniques share similar strategies with other mind-body approaches that encouraging learners to ‘pay attention and shift intention.’ This strategy is part of the instructions when learning Progressive Relaxation, Autogenic Training, Transcendental Meditation, movement meditation of Yoga and Tai Chi and, with instrumented self-regulation techniques such as bio/neurofeedback.  In this sense, MM training repackages techniques that have been available for millennia and thus becomes ‘old wine sold in new bottles.’

We wonder if a control group for compassionate mindfulness training would report more benefits if they were asked not only to meditate on compassionate acts, but actually performed compassionate tasks such as taking care of person in pain, helping a homeless person, or actually writing and delivering a letter of gratitude to a person who has helped them in the past?  The suggestion is to titrate the effects of MM techniques, moving from a more basic level of benefit to a more fully actualized level of benefit, generalizing their skill beyond a training setting, as measured by the Baer et al (2004) Kentucky Inventory of Mindfulness Skills.

Each generation of clinicians and educators rediscover principles without always recognizing that the similar principles were part of the previous clinical interventions. The analogies and language has changed; however, the underlying concepts may be the same.   Mindfulness interventions are now the new, current and popular approach. Some of the underlying ‘mindfulness’ concepts that are shared in common with successfully other mind-body and self-regulation approaches include: 

The practitioner must be self-experienced in mindfulness practice. This means that the practitioners do not merely believe the practice is effective; they know it is effective from self-experience.  Inner confidence conveyed to clients and patients enhances the healing/placebo effect. It is similar to having sympathy or empathy for clients and patients that occurs from have similar life experiences, such as when a clinician speaks to a patient.  For example, a male physician speaking to a female patient who has had a mastectomy may be compassionate; however, empathy occurs more easily when another mastectomy patient (who may also be a physician) shares how she struggled overcame her doubts and can still be loved by her partner.   

There may also be a continuum of strengthening beliefs about the benefits of mindfulness techniques that leads to increase benefits for the approach.  Knowing there are some kinds of benefits from initiating a practice of mindfulness increases empathy/compassion for others as they learn.  Proving that mindfulness techniques are causing benefits after systematically comparing their effectiveness with other approaches strengthens the belief in the mindfulness approaches.  Note that a similar process of strengthening one’s belief in an approach occurs gradually, over time as clients and patients progress through beginner, intermediate and advanced levels of mind-body practices.

Observing thoughts without being captured. Being a witness to the thoughts, emotions, and external events results in a type of covert global desensitization and skill mastery of NOT being captured by those thoughts and emotions. This same process of non-attachment and being a witness is one of the underpinnings of techniques that tacitly and sometime covertly support learning ways of controlling attention, such as with Autogenic Training; namely how to passively attend to a specific body part without judgment and, report on the subjective experience without comparison or judgment.

Ongoing daily practice. Participants take an active role in their own healing process as they learn to control and focus their attention. Participants are often asked to practice up to one hour a day and apply the practices during the day as mini-practices or awareness cues to interrupt the dysfunctional behavior.  For example in Autogenic training, trainees are taught to practice partial formula (such my “neck and shoulders are heavy”) during the day to bring the body/mind back to balance. While with Progressive Relaxation, the trainee learns to identify when they tighten inappropriate muscles (dysponesis) and then inhibit this observed tension.

Peer support by being in a group. Peer support is a major factor for success as people can share their challenges and successes.  Peer support tends to promote acceptance of self-and others and provides role modeling how to cope with stressors.  It is possible  that some peer support groups may counter the benefits of a mind-body technique, especially when the peers do not provide support or may in fact impede progress when they complain of the obstacles or difficulties in their process.

These concepts are not unique to Mindfulness Meditation (MM) training. Similar instructions have been part of the successful/educational intervention of Progressive Relaxation, Autogenic Training, Yogic practices, and Transcendental Meditation. These approaches have been most successful when the originators, and their initial students, taught their new and evolving techniques to clients and patients; however, they became less successful as later followers and practitioners used these approaches without learning an in-depth skill mastery. For example, Progressive relaxation as taught by Edmund Jacobson consisted of advanced skill mastery by developing subtle awareness of different muscle tension that was taught over 100 sessions (Mackereth & Tomlinson, 2010).  It was not simply listening once to a 20-minute audio recording about tightening and relaxing muscles.  Similarly, Autogenic training is very specific and teaches passive attention over a three to six-month time-period while the participant practices multiple times daily.  Stating the obvious, learning Autogenic Training, Mindfulness, Progressive Relaxation, Bio/Neurofeedback or any other mind-body technique is much more than listening to a 20-minute audio recording.

The same instructions are also part of many movement practices. For many participants focusing on the movement automatically evoked a shift in attention.  Their attention is with the task and they are instructed to be present in the movement.

Areas to explore.

Although Mindfulness training with clients and patients has resulted in remarkable beneficial outcomes for the participants, it is not clear whether mindfulness training is better than well taught PR, AT, TM or other mind/body or body/mind approaches.  There are also numerous question to explore such as: 1) Who drops out, 2) Is physical exercise to counter sitting disease and complete the alarm reaction more beneficial, and 3) Strategies to cope with wandering attention.

  • Who drops out?

We wonder if mindfulness is appropriate for all participants as sometimes participants drop out or experience negative abreactions. It not clear who those participants are. Interestingly, hints for whom the techniques may be challenging can be found in the observations of Autogenic Training that lists specific guidelines for contra-, relative- and non-indications (Luthe, 1970).

  • Physical movement to counter sitting disease and complete the alarm reaction.

Although many mindfulness meditation practices may include yoga practices, most participants practice it in a sitting position.  It may be possible that for some people somatic movement practices such as a slow Zen walk may quiet the inner dialogue more quickly. In our experience, when participants are upset and highly stressed, it is much easier to let go of agitation by first completing the triggered fight/flight response with vigorous physical activity such as rapidly walking up and downs stairs while focusing on the burning sensations of the thigh muscles.  Once the physical stress reaction has been completed and the person feels physically calmer then the mind is quieter. Then have the person begin their meditative practice.  

  •  Strategies to cope with wandering attention.

Some participants have difficulty staying on task, become sleepy, worry, and/or are preoccupied. We observed that first beginning with physical movement practices or Progressive Relaxation appears to be a helpful strategy to reduce wandering thoughts.  If one has many active thoughts, progressive relaxation continuously pulls your attention to your body as you are directed to tighten and let go of muscle groups.  Being guided supports developing the passive focus of attention to bring awareness back to the task at hand. Once internally quieter, it is easier hold their attention while doing Autogenic Training, breathing or Mindfullness Meditation.

By integrating somatic components with the mindfulness such as done in Progressive Relaxation or yoga practices facilitates the person staying present.  Similarly, when teaching slower breathing, if a person has a weight on their abdomen while practicing breathing, it is easier to keep attending to the task: allow the weight to upward when inhaling and feeling the exhalation flowing out through the arms and legs.

Therapeutic and education strategies that implicitly incorporate mindfulness

Progressive relaxation

In the United States during the 1920 progressive relaxation (PR) was developed and taught by Edmund Jacobson (1938). This approach was clinically very successful for numerous illnesses ranging from hypertension, back pain, gastrointestinal discomfort, and anxiety; it included 50 year follow-ups. Patients were active participants and practiced the skills at home and at work and interrupt their dysfunctional patterns during the day such as becoming aware of unnecessary muscle tension (dyponetic activity) and then release the unnecessary muscle tension (Whatmore & Kohli, 1968).  This structured approach is totally different than providing an audio recording that guides clients and patients through a series of tightening and relaxing of their muscles.  The clinical outcome of PR when taught using the original specific procedures described by Jacobson (1938) was remarkable. The incorporation of Progressive Relaxation as the homework practice was an important cofactor in the successful outcome in the treatment of muscle tension headache using electromyography (EMG) biofeedback by Budzynski, Stoyva and Adler (1970).

Autogenic Training

In 1932 Johannes Schultz in Germany published a book about Autogenic Training describing the basic training procedure. The basic autogenic procedure, the standard exercises, were taught over a minimum period of three month in which the person practiced daily.  In this practice they directed theri passive attention to the following  cascading sequence: heaviness of their arms, warmth of their arms, heart beat calm and regular, breathing calm and regular or it breathes me, solar plexus is warm, forehead is cool, and I am at peace (Luthe, 1979). Three main principles of autonomic training mentioned by Luthe (1979) are: (1) mental repetition of topographically oriented verbal formulae for brief periods; (2) passive concentration; and (3) reduction of exteroceptive and proprioceptive afferent stimulation.  The underlying concepts of Autogenic Therapy include as described by Peper and Williams (1980):

The body has an innate capacity for self-healing and it is this capacity that is allowed to become operative in the autogenic state. Neither the trainer nor trainee has the wisdom necessary to direct the course of the self-balancing process; hence, the capacity is allowed to occur and not be directed.

  • Homeostatic self-regulation is encouraged.
  • Much of the learning is done by the trainee at home; hence, the responsibility for the training lies primarily with the trainee.
  • The trainer/teacher must be self-experience in the practice.
  • The attitude necessary for successful practice is one of passive attention; active striving and concern with results impedes the learning process. An attitude of acceptance is cultivated, letting be whatever comes up. This quality of attention is known as “mindfulness’ in meditative traditions.

The clinical outcome for autogenic therapy is very promising. The detailed guided self-awareness training and uncontrolled studies showed benefits across a wide variety of psychosomatic illness such as asthma, cancer, hypertension, anxiety, pain irritable bowel disease, depression (Luthe & Schultz, 1970a; Luthe & Schultz, 1970b). Autogenic training components have also been integrated in biofeedback training.  Elmer and Alice Green included the incorporation of autogenic training phrases with temperature biofeedback for the very successful treatment of migraines (Green & Green, 1989).  Autonomic training combine with biofeedback in clinical practices produced better results than control group for headache population (Luthe, 1979). Empirical research found that autonomic training was applied efficiently in emotional and behavioral problems, and physical disorder (Klott, 2013), such as skin disorder (Klein & Peper, 2013), insomnia (Bowden et al., 2012), Meniere’s disease (Goto, Nakai, & Ogawa, 2011) and the multitude of  stress related symptoms (Wilson et al., 2023).

Bio/neurofeedback training

Starting in the late 1960s, biofeedback procedures have been developed as a successful treatment approach for numerous illnesses ranging from headaches, hypertension, to ADHD (Peper et al., 1979; Peper & Shaffer, 2010; Khazan, 2013).  In most cases, the similar instructions that are part of mindfulness meditation are also embedded in the bio/neurofeedback instructions. The participants are instructed to learn control over some physiological parameter and then practice the same skill during daily life. This means that during the learning process, the person learn passive attention and is not be captured by marauding thoughts and feeling.  and during the day develop awareness Whenever they become aware of  dysfunctional patterns, thoughts, emotions, they  initiated their newly learned skill.  The ongoing biological feedback signals continuously reminds them to focus.

Transcendental meditation

The next fad to hit the American shore was Transcendental Meditation (TM)– a meditation practice from the ancient Vedic tradition in India.  The participant were given a mantra that they mentally repeated and if their attention wanders, they go back to repeating the mantra internally.  The first study that captured the media’s attention was by Wallace (1970) published in the Journal Science which reported that “During meditation, oxygen consumption and heart rate decreased, skin resistance increased, and the electroencephalogram showed specific changes in certain frequencies. These results seem to distinguish the state produced by Transcendental Meditation from commonly encountered states of consciousness and suggest that it may have practical applications.” (Wallace, 1970).

The participants were to practice the mantra meditation twice a day for about 20 minutes. Meta-analysis studies have reported that those who practiced TM as compared to the control group experienced significant improved of numerous disorders such as CVD risk factors, anxiety, metabolic syndrome, drug abuse and hypertension (Paul-Labrador et al, 2006; Rainforth et al., 2007; Hawkins, 2003).

To make it more acceptable for the western audience, Herbert Benson, MD, adapted and simplified techniques from TM training and then labelled a core element, the ‘relaxation response’  (Benson et al., 1974) Instead of giving people a secret mantra and part of a spiritual tradition,  he recommend using the word “one”  as the mantra. Numerous studies have demonstrated that when patients practice the relaxation response, many clinical symptoms were reduced. The empirical research found that practiced transcendental meditation caused increasing prefrontal low alpha power (8-10Hz) and theta power of EEG; as well as higher prefrontal alpha coherence than other locations at both hemispheres. Moreover, some individuals also showed lower sympathetic activation and higher parasympathetic activation, increased respiratory sinus arrhythmic and frontal blood flow, and decreased breathing rate (Travis, 2001, 2014). Although TM and Benson’s relaxation response continues to be practiced, mindfulness has taking it place.

Conclusion

Mindfulness-Based Stress Reduction (MBSR) and Mindfulness-Based Cognitive Therapy (MBCT) are very beneficial and yet may be considered ‘old wine in new bottles’ where the metaphor refers to millennia old meditation techniques as ‘old wine’ and the acronyms such as MBSR or MBCT as ‘new bottles’.  Like many other ‘new’ therapeutic approaches or for that matter, many other ‘new’ medications, use it now before it becomes stale and loses part of its placebo power.  As long as the application of a new technique is taught with the intensity and dedication of the promotors of the approach, and as long as the participants are required to practice while receiving support, the outcomes will be very beneficial, and most likely similar in effect to other mind-body approaches. 

The challenge facing mindfulness practices just as those from Autogenic Training, Progressive Relaxation and Transcendental Meditation, is that familiarity breeds contempt and that clients and therapists are continuously looking for a new technique that promises better outcome. Thus as Mindfulness training is taught to more and more people, it may become less promising.  In addition, as mindfulness training is taught in less time, (e.g. fewer minutes and/or fewer sessions), and with less well-trained instructors, who may offer less support and supervision for people experiencing possible negative effects, the overall benefits may decrease.  Thus, mindfulness practice, Autogenic training, progressive relaxation, Transcendental Meditation, movement practices, meditation, breathing practices as well as the many spiritual practices all appear to share common fate of fading over time.  Whereas the core principles of mind-body techniques are ageless, the execution is not always assured.

References

Agee, J. D., Danoff-Burg, S., & Grant, C. A. (2009). Comparing brief stress management courses in a community sample: Mindfulness skills and progressive muscle relaxation. Explore: The Journal of Science and Healing, 5(2), 104-109. https://doi.org/10.1016/j.explore.2008.12.004

Andersen, S. R., Würtzen, H., Steding-Jessen, M., Christensen, J., Andersen, K. K., Flyger, H., … & Dalton, S. O. (2013). Effect of mindfulness-based stress reduction on sleep quality: Results of a randomized trial among Danish breast cancer patients. Acta Oncologica, 52(2), 336-344. https://doi.org/10.3109/0284186X.2012.745948

Alvarez-Jimenez, M., Gleeson, J. F., Bendall, S., Penn, D. L., Yung, A. R., Ryan, R. M., … Nelson, B. (2018). Enhancing social functioning in young people at Ultra High Risk (UHR) for psychosis: A pilot study of a novel strengths and mindfulness-based online social therapy. Schizophrenia Research, 202, 369-377 https://doi.org/10.1016/j.schres.2018.07.022

Baer, R. A. (2003). Mindfulness training as a clinical intervention: A conceptual and empirical review. Clinical Psychology: Science and Practice, 10, 125–143. https://doi.org/10.1093/clipsy/bpg015

Baer, R. A.. (2015). Mindfulness-based treatment approaches: Clinician’s guide to evidence base and applications. New York: Elsevier. https://www.elsevier.com/books/mindfulness-based-treatment-approaches/baer/978-0-12-416031-6

Baer, R., Smith, G., & Allen, K. (2004). Assessment of mindfulness by self-report: The Kentucky Inventory of Mindfulness Skills. Assessment, 11, 191–206. https://doi.org/10.1177/1073191104268029

Benson, H.,  Beary, J. F.,  & Carol, M. P. (1974).The Relaxation Response. Psychiatry, 37(1), 37-46.   https://www.tandfonline.com/loi/upsy20

Bowden, A., Lorenc, A., & Robinson, N. (2012). Autogenic Training as a behavioural approach to insomnia: A prospective cohort study. Primary Health Care Research & Development, 13, 175-185. https://doi.org/10.1017/S1463423611000181

Britton, W.B., Lindahl, J.R., Coope, D.J., Canby, N.K., & Palitsky, R. (2021). Defining and Measuring Meditation-Related Adverse Effects in Mindfulness-Based Programs. Clinical Psychological Science, 9(6), 1185-1204. https://doi.org/10.1177/2167702621996340

Budzynski, T., Stoyva, J., & Adler, C. (1970). Feedback-induced muscle relaxation: Application to tension headache. Journal of Behavior Therapy and Experimental Psychiatry, 1(3), 205-211.  https://doi.org/10.1016/0005-7916(70)90004-2

Carlson, L. E., Speca, M., Patel, K. D., & Goodey, E. (2003). Mindfulness‐based stress reduction in relation to quality of life, mood, symptoms of stress, and immune parameters in breast and prostate cancer outpatients. Psychosomatic Medicine, 65(4), 571-581. https://doi.org/10.1097/01.psy.0000074003.35911.41

Chapin, H. L., Darnall, B. D., Seppala, E. M., Doty, J. R., Hah, J. M., & Mackey, S. C. (2014). Pilot study of a compassion meditation intervention in chronic pain. J Compassionate Health Care, 1(4), 1-12.  https://doi.org/10.1186/s40639-014-0004-x

Cherkin, D. C., Sherman, K. J., Balderson, B. H., Cook, A. J., Anderson, M. L., Hawkes, R. J., … & Turner, J. A. (2016). Effect of mindfulness-based stress reduction vs cognitive behavioral therapy or usual care on back pain and functional limitations in adults with chronic low back pain: A randomized clinical trial. JAMA, 315(12), 1240-1249. https://doi.org/10.1001/jama.2016.2323

Crawford, C., Wallerstedt, D. B., Khorsan, R., Clausen, S. S., Jonas, W. B., & Walter, J. A. (2013). A systematic review of biopsychosocial training programs for the self-management of emotional stress: Potential applications for the military. Evidence-Based Complementary and Alternative Medicine,  747694: 1-23. https://doi.org/10.1155/2013/747694

Davis, M.,   Eshelman, E.R., &  McKay, M. (2019). The Relaxation and Stress Reduction Workbook. Oakland, CA: New Harbinger Publications. https://www.amazon.com/Relaxation-Reduction-Workbook-Harbinger-Self-Help/dp/1684033349

Demarzo, M. M., Montero-Marin, J., Cuijpers, P., Zabaleta-del-Olmo, E., Mahtani, K. R., Vellinga, A., Vincens, C., Lopez del Hoyo, Y., & García-Campayo, J. (2015). The efficacy of mindfulness-based interventions in primary care: A meta-analytic review. The Annals of Family Medicine, 13(6), 573-582. https://doi.org/10.1370/afm.1863

Fjorback, L. O., Arendt, M., Ørnbøl, E., Fink, P., & Walach, H. (2011). Mindfulness‐Based Stress Reduction and Mindfulness‐Based Cognitive Therapy–A systematic review of randomized controlled trials. Acta Psychiatrica Scandinavica, 124(2), 102-119.  https://doi.org/10.1111/j.1600-0447.2011.01704.x

Goto, F., Nakai, K., & Ogawa, K. (2011). Application of autogenic training in patients with Meniere disease. European Archives of Oto-Rhino-Laryngology, 268(10), 1431-1435. https://doi.org/10.1007/s00405-011-1530-1

Greeson, J., & Eisenlohr-Moul, T. (2014). Mindfulness-based stress reduction for chronic pain. In R. A. Baer (Ed.),  Mindfulness-Based Treatment Approaches: Clinician’s Guide to Evidence Base and Applications, 269-292. San Diego, CA: Academic Press. https://psycnet.apa.org/record/2014-40932-000

Green, E. and Green, A. (1989). Beyond Biofeedback. New York: Knoll. https://www.amazon.com/Beyond-Biofeedback-Elmer-Green/dp/0940267144

Hawkins, M. A. (2003). Effectiveness of the Transcendental Meditation program in criminal rehabilitation and substance abuse recovery. Journal of Offender Rehabilitation, 36(1-4), 47- 65. https://doi.org/10.1300/J076v36n01_03

Hilton, L., Hempel, S., Ewing, B. A., Apaydin, E., Xenakis, L., Newberry, S., …Maglione, M. A. (2016). Mindfulness meditation for chronic pain: Systematic review and meta-analysis. Annals of Behavioral Medicine, 51(2), 199-213. https://doi.org/10.1007/s12160-016-9844-2

Hoffman, C. J., Ersser, S. J., Hopkinson, J. B., Nicholls, P. G., Harrington, J. E., & Thomas, P. W. (2012). Effectiveness of mindfulness-based stress reduction in mood, breast-and endocrine-related quality of life, and well-being in stage 0 to III breast cancer: A randomized, controlled trial. Journal of Clinical Oncology, 30(12), 1335-1342. https://doi.org/10.1200/JCO.2010.34.0331

Jacobson, E. (1938). Progressive relaxation. Chicago, IL: University of Chicago Press. https://www.amazon.com/Progressive-Relaxation-Physiological-Investigation-Significance/dp/0226390594

Kabat-Zinn, J. (1994). Wherever you go, there you are: Mindfulness meditation in everyday life. New York: Hyperion. https://www.amazon.com/Wherever-You-There-Are-Mindfulness/dp/0306832011

Kabat-Zinn, J. (2003). Mindfulness-based stress reduction (MBSR). Constructivism in the Human Sciences, 8, 73–107. https://psycnet.apa.org/record/2004-19791-008

Khazan, I. Z. (2013). The clinical handbook of biofeedback: A step-by-step guide for training and practice with mindfulness. New York: John Wiley & Sons. https://www.amazon.com/Clinical-Handbook-Biofeedback-Step-Step/dp/1119993717

Klein, A., & Peper, E. (2013). There Is hope: Autogenic biofeedback training for the treatment of psoriasis. Biofeedback, 41 (4), 194-201. https://doi.org/10.5298/1081-5937-41.4.01

Khoury, B., Lecomte, T., Fortin, G., Masse, M., Therien, P., Bouchard, V., Chapleau, M., Paquin, K., & Hofmann, S. G. (2013). Mindfulness-based therapy: A comprehensive meta-analysis. Clinical Psychology Review, 33(6), 763-771. https://doi.org/10.1016/j.cpr.2013.05.005

Khoury, B., Sharma, M., Rush, S. E., & Fournier, C. (2015). Mindfulness-based stress reduction for healthy individuals: A meta-analysis. Journal of Psychosomatic Research, 78(6), 519-528.

Klott, O. (2013). Autogenic Training–a self-help technique for children with emotional and behavioural problems. Therapeutic Communities: The International Journal of Therapeutic Communities, 34(4), 152-158. https://doi.org/10.1108/TC-09-2013-0027

Kreplin, U., Farias, M., & Brazil, I. A. (2018). The limited prosocial effects of meditation: A systematic review and meta-analysis. Sci Rep, 8, 2403. https://doi.org/10.1038/s41598-018-20299-z

Kuhlmann, S. M., Huss, M., Bürger, A., & Hammerle, F. (2016). Coping with stress in medical students: results of a randomized controlled trial using a mindfulness-based stress prevention training (MediMind) in Germany. BMC Medical Education, 16(1), 316. https://doi.org/10.1186/s12909-016-0833-8

Lindahl, J. R., Fisher, N. E., Cooper, D. J., Rosen, R. K,  & Britton, W. B. (2017). The varieties of contemplative experience: A mixed-methods study of meditation-related challenges in Western Buddhists. PLoSONE, 12(5): e0176239. https://doi.org/10.1371/journal.pone.0176239

Luthe, W. (1970). Autogenic therapy: Research and theory. New York: Grune and Stratton. https://www.cambridge.org/core/journals/the-british-journal-of-psychiatry/article/abs/autogenic-therapy-edited-by-wolfgang-luthe-volume-4-research-and-theory-by-wolfgang-luthe-grune-and-stratton-new-york-1970-pp-276-price-1475/6C8521C36C37254A08AAD1F2FE08211C

Luthe, W. (1979). About the Methods of Autogenic Therapy. In: Peper, E., Ancoli, S., Quinn, M. (eds). Mind/Body Integration. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-2898-8_12

Luthe, W. & Schultz, J. H. (1970a). Autogenic therapy: Medical applications. New York: Grune and Stratton. https://www.amazon.com/Autogenic-Therapy-II-Medical-Applications/dp/B001J9W7L6

Luthe, W. & Schultz, J. H. (1970b). Autogenic therapy: Applications in psychotherapy. New York: Grune and Stratton. https://www.amazon.com/Autogenic-Therapy-Applications-Psychotherapy-v/dp/0808902725

Mackereth, P.A. & Tomlinson, L. (2010). Progressive muscle relaxation. In Cawthorn, A. & Mackereth, P.A. eds. Integrative Hypnotherapy. London: Churchill Livingstone. https://www.amazon.com/Integrative-Hypnotherapy-Complementary-approaches-clinical/dp/0702030821

Marchand, W. R. (2012). Mindfulness-based stress reduction, mindfulness-based cognitive therapy, and Zen meditation for depression, anxiety, pain, and psychological distress. Journal of Psychiatric Practice, 18(4), 233-252. https://doi.org/10.1097/01.pra.0000416014.53215.86

NCCIH (2024). Meditation and Mindfulness: What You Need To Know. National Center for Complementary and Integrative Health, National Institutes of Health. Accessed January 31, 2024. https://www.nccih.nih.gov/health/meditation-and-mindfulness-what-you-need-to-know?

Paul-Labrador, M., Polk, D., Dwyer, J.H. et al. (2006). Effects of a randomized controlled trial of Transcendental Meditation on components of the metabolic syndrome in subjects with coronary heart disease. Archive of Internal Medicine, 166(11), 1218-1224. https://doi.org/10.1001/archinte.166.11.1218

Peper, E., Ancoli, S. & Quinn, M. (Eds). (1979). Mind/Body Integration: Essential Readings in Biofeedback. New York: Plenum. https://www.amazon.com/Mind-Body-Integration-Essential-Biofeedback/dp/0306401029

Peper, E. & Shaffer, F. (2010). Biofeedback History: An Alternative View. Biofeedback, 38 (4): 142–147. https://doi.org/10.5298/1081-5937-38.4.03

Peper, E., & Williams, E.A. (1980).  Autogenic therapy. In A. C. Hastings,  J. Fadiman, & J. S. Gordon (Eds.), Health for the whole person (pp137-141).. Boulder: Westview Press. https://biofeedbackhealth.files.wordpress.com/2016/02/autogenic-therapy-peper-and-williams.pdf

Rainforth, M.V., Schneider, R.H., Nidich, S.I., Gaylord-King, C., Salerno, J.W., & Anderson, J.W. (2007). Stress reduction programs in patients with elevated blood pressure: A systematic review and meta-analysis. Current Hypertension Reports, 9(6), 520–528. https://doi.org/10.1007/s11906-007-0094-3

Stroebel, C. (1982). QR: The Quieting Reflex. New York: Putnam Pub Group. https://www.amazon.com/Qr-Quieting-Charles-M-D-Stroebel/dp/0399126570

Tanner, M.  A., Travis, F., Gaylord‐King, C., Haaga, D. A. F., Grosswald, S., & Schneider, R. H. (2009). The effects of the transcendental meditation program on mindfulness. Journal of Clinical Psychology 65(6), 574-589. https://doi.org/10.1002/jclp.20544

Teasdale, J. D., Segal, Z., & Williams, J. M. (1995). How does cognitive therapy prevent depressive relapse and why should attentional control (mindfulness) training help? Behaviour Research and Therapy, 33, 25–39. https://doi.org/10.1016/0005-7967(94)e0011-7

Travis, F. (2001). Autonomic and EEG patterns distinguish transcending from other experiences during transcendental meditation practice. International Journal of Psychophysiology, 42, 1–9. https://doi.org/10.1016/s0167-8760(01)00143-x

Travis, F. (2014). Transcendental experiences during meditation practice. Annals of the New York Academy of Sciences, 1307, 1–8. https://doi.og10.1111/nyas.12316

Wallace, K.W. (1970). Physiological Effects of Transcendental Meditation. Science, 167 (3926), 1751-1754.  https://doi.org/10.1126/science.167.3926.1751

Whatmore, G. B., & Kohli, D. R. (1968). Dysponesis: A neurophysiologic factor in functional disorders. Behavioral Science, 13(2), 102–124. https://doi.org/10.1002/bs.3830130203

Wilson, V., Somers, K. & Peper, E. (2023). Differentiating Successful from Less Successful Males and Females in a Group Relaxation/Biofeedback Stress Management Program. Biofeedback, 51(3), 53–67. https://doi.org/10.5298/608570

Witek Janusek, L., Tel,l D., & Mathews, H.L. (2019). Mindfulness based stress reduction provides psychological benefit and restores immune function of women newly diagnosed with breast cancer: A randomized trial with active control. Brain Behav Immun, 80:358-373. https://doi.org/10.1016/j.bbi.2019.04.012