A recently-published Harvard University meta-analysis funded by the National Institutes of Health (NIH) has concluded that children who live in areas with highly fluoridated water have significantly lower" IQ scores than those who live in low fluoride areas. The [32-page report] said: "A recent report from the U.S. National Research Council (NRC 2006) concluded that adverse effects of high fluoride concentrations in drinking water may be of concern. Fluoride may cause neurotoxicity in laboratory animals, including effects on learning and memory." Findings from our meta-analyses of 27 studies published over 22 years suggest an inverse association between high fluoride exposure and children's intelligence. Fluoride may be a developmental neurotoxicant that affects brain development at exposures much below those that can cause toxicity in adults." Despite the evidence against it, fluoride is still added to 70 percent of U.S. public drinking water supplies. What is perhaps most surprising is that the harmful effects of fluoride have been known by conventional medical organizations for over half a century. For example, the Journal of the American Medical Association (JAMA) stated in their Sept. 18, 1943 issue that fluorides are general protoplasmic poisons. And, an editorial published in the Journal of the American Dental Association on Oct. 1, 1944, stated: "Drinking water containing as little as 1.2 ppm fluoride will cause developmental disturbances. The potentialities for harm outweigh those for good."