Fluoride studies in rats can be indicative of a potential for motor disruption, intelligence deficits and learningdisabilities in humans. Humans are exposed to plasma levels of fluoride as high as those in rat studies. Fluoride involves interruption of normal brain development. Fluoride affects the hipppcampus in the brain, which integrates inputs from the environment, memory, and motivational stimuli, to produce behavioral decisions and modify memory. Experience with other developmental neurotoxicants prompts expectations that changes in behavioral functions will be comparable across species, especially humans and rats .
Fluorides accumulate in the brain over time to reach neurologically harmful levels.
Fluorides are general protoplasma poisons, with the capacity to modify the metabolism of cells by inhibting certain enzymes. Sources of fluoride intoxication include drinking water containing 1ppm or more of fluorine. Journal of the American Medical Association , September 18, 1943. Drinking water containing as little as 1.2 ppm fluoride will cause developmental disturbances. We cannot run the risk of producing such serious systemic disturbances.