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HEALTH EFFECTS: Fluoride & the Brain

Posted by on Jan. 21, 2009 at 9:35 PM
  • 1 Replies

1) Fluoride's ability to damage the brain represents one of the most active areas of research on fluoride toxicity today.

2) The research on fluoride and the brain has been fueled by 18 human studies from China, India, Iran, and Mexico finding elevated levels of fluoride exposure to be associated with IQ deficits in children. Fluoride's impact on IQ is exacerbated among children with low-iodine exposure.

3) The impact of fluoride on children's IQ has been documented even after controlling for children's lead exposure, iodine exposure, parental education and income status, and other known factors that might impact the results (Rocha-Amador 2007; Xiang 2003 a,b).

4) In addition to IQ studies, 3 studies (Yu 1996; Du 1992; Han 1989) have found that fluoride accumulates in the brain of the fetus, causing damage to cells and neurotransmitters and 1 study (Li 2004) has found a correlation between exposure to fluoride during fetal development and behavioral deficits among neonates.

5) Several recent studies have found that even adult exposures to fluoride may result in central nervous system disturbances, particularly among industrial workers.

5) The findings of neurological effects in fluoride-exposed humans is consistent with, and strengthened by, recent findings from over 40 animal studies published since 1992. As with the studies on humans, the studies on animals have reported an impairment in learning and memory prorcesses among the fluoride-treated groups.

6) The animal studies have also documented considerable evidence of direct toxic effects of fluoride on brain tissue, even at levels as low as 1 ppm fluoride in water (Varner 1998). These effects include:

-- reduction in nicotinic acetylcholine receptors;
-- reduction in lipid content;
-- impaired anti-oxidant defense systems;
-- damage to the hippocampus;
-- damage to the purkinje cells;
-- increased uptake of aluminum;
-- formation of beta-amyloid plaques (the classic brain abnormality in Alzheimer's disease);
-- exacerbation of lesions induced by iodine deficiency; and
-- accumulation of fluoride in the pineal gland.

Articles of Interest - Fluoride & the Brain: (back to top)

Available Full-Text Papers Online - Fluoride & the Brain: (back to top)

NOTABLE QUOTES- Fluoride's Impact on the Brain: (back to top)

"it is apparent that fluorides have the ability to interfere with the functions of the brain."
SOURCE: National Research Council. (2006). Fluoride in Drinking Water: A Scientific Review of EPA's Standards. National Academies Press, Washington D.C. p 187.

"Studies in animals and human populations suggest that fluoride exposure, at levels that are experienced by a significant proportion of the population whose drinking water is fluoridated, may have adverse impacts on the developing brain. Though no final conclusions may be reached from available data, the findings are provocative and of significant public health concern."
SOURCE: Schettler T, et al. (2000). Known and suspected developmental neurotoxicants. pp. 90-92. In:
In Harms Way - Toxic Threats to Child Development. Greater Boston Physicians for Social Responsibility: Cambridge, MA. (See report)

“Fluorides also increase the production of free radicals in the brain through several different biological pathways. These changes have a bearing on the possibility that fluorides act to increase the risk of developing Alzheimer’s disease.”
SOURCE: National Research Council. (2006). Fluoride in Drinking Water: A Scientific Review of EPA's Standards. National Academies Press, Washington D.C. p 186.

“Studies of populations exposed to different concentrations of fluoride should be undertaken to evaluate neurochemical changes that may be associated with dementia. Consideration should be given to assessing effects from chronic exposure, effects that might be delayed or occur late-in-life, and individual susceptibility.”
SOURCE: National Research Council. (2006). Fluoride in Drinking Water: A Scientific Review of EPA's Standards. National Academies Press, Washington D.C. p 187.

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by on Jan. 21, 2009 at 9:35 PM
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Aamy
by Gold Member on Jan. 21, 2009 at 9:37 PM

Ok ...........................................

 


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