DAMS Intl., St Paul, Mn, 55015


Cognitive and Behavioral Effects Linked to Toxic Metal Exposure and Resulting Metabolic Imbalances, including Learning Disabilities, ADD, Violent Prone and Sociopathic Behavior, Juvenile Delinquency, Criminality, and Mass Murder 


1.In the last decade 50% of U.S. pregnancies resulted in birth defects, neurological conditions such as ADD, dyslexia, autism, schizophrenia, other learning disabilities; mood disorders, other developmental disorders; or chronically unhealthy children according to a recent report of the National Academy of Sciences.   (1) 


2. Peer-reviewed medical studies have documented that the majority of such conditions are caused by exposure to toxic substances, with the most common being the toxic metals: mercury, lead, arsenic, nickel, cadmium, copper, antimony, and aluminum.    (2,4,8-12)    Pesticide , organochlorine, organophosphate, dioxin, polyaromatic hydrocarbons(PAH), and PCB exposures are also common and can also cause such effects.                 (3)


3. Dental amalgam is the largest source of both inorganic and methyl mercury in most with several mercury amalgam fillings, and most with several fillings have mercury exposure levels 10 times that of the average person without amalgam.   (14)


4. Much of the developmental effects of mercury (and other toxic metals) are due to prenatal and neonatal exposures damage to the developing endocrine (hormonal) system.                 (12,5)


5.  Prenatal and neonatal toxic metal exposure as well as chronic exposures to  mercury, lead, arsenic, cadmium, nickel, and aluminum have been documented in medical publications and medical texts to cause common and widespread neurological and psychological effects including depression, anxiety, obsessive compulsive disorders, social deficits, other mood disorders, schizophrenia, anorexia, cognitive impairments, ADHD, autism, seizures, etc         (9,11,13,2,4)


6. Exposure to toxic metals causes ADHD, dyslexiaautism, and other neurological and immune conditions as a result of their neurotoxicityimmunotoxicity, and endocrine disrupting effects, as well as by causing deficiencies and imbalances in essential minerals and essential fatty acids;  blocking essential enzymatic processes such as those necessary for digestion and processing of milk casein, wheat gluten, amino acids, vitamin B-6 and B-12; and causing “leaky gut” and poor nutrient absorption(2,4,8-13).   These enzymatic blockages and metabolic disorders prevent processing of necessary minerals and nutrients and result in neurotoxic metabolites in the blood. (2,4)


7. Metals toxicity and metabolic imbalances are major factors in  behavioral disorders and problems of children- including violence, sociopathic behavior, juvenile delinquency, and criminality         (2,5,6,13)


8. A hair element analysis of 28 recent mass murderers or serial killers found that all had patterns of metals toxicity and mineral imbalances typical of violent prone/sociopathic behavior                   (6,13). 


9. Metals detoxification and nutritional treatment that deals with the essential mineral and essential fatty acid imbalances result in significant improvements in most of these conditions, including violent and sociopathic behavior.  (2,4,5,7,10-13)  

10. Common exposures in children have been documented for mercury(vaccines, mother’s amalgam fillings, dental work, fish),lead(paint,soil,water fixtures,etc.), arsenic(treated wood, pesticides, shellfish, other foods, Scotchguard), aluminum(pans, processed food, medicines), cadmium(shellfish, paint, piping), antimony(cosmetics)manganese(soy milk, welding, metal works)      (2,4,6,10) 

     Toxic levels of such have been found in the majority of Pervasive Developmental Disorder(PDD) children tested. (2,4,10,11,13)


11. The majority of the referenced medical studies can be found in Medline at the National Institute of Health National Library of Medicine,


Metals toxicity is common and causes leaky gut, poor essential mineral absorption, mineral and essential fatty acid imbalances, and enzymatic blockages that some call "food allergies".    This is in addition to accumulating in hormone glands and brain causing hormonal and neurotransmitter imbalances.  Some are more susceptible to such than 

others and are more affected.  But these resulting deficiencies and imbalances are well documented to be the main cause of cognitive and behavioral problems including juvenile delinquency and criminality and violence and even mass murder. This has been documented in several large studies in schools, juvenile detention centers and prisons.     It’s also been well documented that nutrition changes and vitamin and mineral supplementation can reduce these problems significantly.  But the earlier started the better it works‑as in kindergarten and elementary school.  



(1)  National Academy of Sciences, National Research Council, Committee on Developmental Toxicology,    Scientific Frontiers in Developmental Toxicology and Risk Assessment, June 1, 2000,   313 pages; &  Evaluating Chemical and Other Agent Exposures for  Reproductive and Developmental Toxicity Subcommittee on Reproductive and Developmental Toxicity,  Committee on Toxicology, Board on Environmental Studies and Toxicology, National Research Council National Academy Press, 262 pages,  2001.

(2) B. Windham, Cognitive and behavioral effects of toxic metals, 2001. (over 150 peer-reviewed references)

(3) B. Windham,   Health effects of pesticide exposure, 2000. (over 100 medical      study references)

(4) B. Windham, Autism, Schizophrenia, ADD, Dyslexia, and Pervasive       Developmental Disorders; the mercury and vaccine connection, 2001. (over100 peer reviewed references)

(5)  Developmental Efftects of Prenatal and Neonatal Mercury Exposure,                                         .           

 (6) B. Windham, The Toxic Metal connection to ADD, Aggressiveness, Impulsivity, Violence,           

Delinquency, Criminality, and Mass murderers/Serial killers.  2002.

(7) Great Smokies Diagnostic Lab,  Depression, ADD & ADHD research web pages - click on:         (by condition),  research studies on causes and treatments,  http://      &

         Vitamin Research News (weekly journal), see issues on autism, ADD, etc.


(8)   ATSDR/EPA Priority List for 2001: Top 20 Hazardous Substances, Agency for Toxic Substances and Disease Registry, U.S. Department of Health and Human Services,

(9) R.A.Goyer,”Toxic effects of metals”in: Caserett and Doull’s Toxicology- TheBasic Science         of Poisons, McGraw-Hill Inc., N.Y., 1993; &(b) Goodman, Gillman, The Pharmacological Basis of Therapeutics, Mac Millan Publishing Company, N.Y. 1985; &(c) Encyclopedia of Occumpational Health and Safety, International Labour Office, Geneva, Vol 2, 3rd Edition.;&(d) Arena, Drew, Poisoning.  Fifth Edition.  Toxicology-Symptoms-Treatment, Charles C. Thomas-Publisher, Springfield Il, 1986;  & Merritt’s Textbook of Neurology, 9th Ed., Williams and Wilkins, Baltimore, 1995, p668-, & Clinical Management of Poisoning, 3rd Ed.,(p753) Haddad, Shannon, and Winchester, W.B. Saunders and Company, Philadelphia, 1998; & U.S. EPA, Office of Health and Environmental Assessment,  Mercury Health Effects, Update Health Issue Assessment, Final Report, 1984, EOA-600/8-84f.;  Cecil Textbook of Medicine, 20th Ed., Bennett & Plum, W.B. Saunders and Company, Philadelphia, 1996, p 69;  &  Comprehensive Psychiatry, 18(6), 1977, pp595-598, &Poisoning & Toxicology Compendium, Leikin and Palouchek,   Lexi-Comp., Cleveland, 1998; & Harrison’s Principles Of Internal Medicine, 14th Ed., McGraw-Hill, N.y.,   1998; &  Sunderman FW.  Perils of mercury. Ann Clin Lab Sci 1988 Mar‑Apr;18(2):89‑101; & Metabolic effects of mercury, DAMS, BWindham (Ed),

(10) B. Windham, Common exposure levels to mercury from amalgam fillings and mechanisms         by which mercury from amalgam is a major factor in over 30 chronic health conditions.           2003.  (over 4,000 peer-reviewed medical studies and government agency studies, and       documentation by doctors of 60,000 clinical cases of recovery after amalgam replacement).     

(11) Psychiatric Disturbances and Toxic Metals, Townsend Letter for Doctor's & Patients April 2002; & Alternative & Complementary Therapies (a magazine for doctors), Aug 2002;  A. Holmes, Baton Rouge Autism/PDD Clinic,



(12) Developmental effects related to prenatal/neonatal mercury exposure and mercury’s endocrine disruptive effects, B. Windham(Ed.)

(13)  W.J. Walsh, Pfeiffer Treatment Clinic and Health Research Institute,



Technical Contact:    Bernard Windham, Chemical Engineer, 850-878-9024,

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