From: The Fluoride Action Network

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.

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