Take a careful sip of water: Harvard University scientists released a study in July 2012 through the U.S. National Institute of Environmental Health Sciences that made the conclusion that fluoridation of water is a causal source for lowered IQ, especially in the development of children. "The children in high fluoride areas had significantly lower IQ than those who lived in low fluoride areas," states the study. In addition, the Fluoride Action Network disseminates the results of the study: "In a meta-analysis, researchers from Harvard School of Public Health (HSPH) and China Medical University in Shenyang for the first time combined 27 studies and found strong indications that fluoride may adversely affect cognitive development in children. Based on the findings, the authors say that this risk should not be ignored, and that more research on fluoride's impact on the developing brain is warranted." In addition, a study published in Harvard's "The Lancet", this year (2014, Vol. 13, Iss. 3), looks at environmental toxins, including fluoride as having affect on mental and behavioral health, suggesting a link to ADHD and autism spectrum disorders. From Natural Society: "A newly published study in Harvard's The Lancet weighs in on the toxins causing autism and ADHD (attention-deficit hyperactivity disorder). Researchers from the Harvard School of Public Health (HSPH) and the Icahn School of Medicine at Mount Sinai (ISMMS) say that along with these numerous environmental toxins, fluoridated water is adding to the higher incident of both cognitive and behavioral disorders." Local variants involve the actual personal daily intake of fluoridated water and bio-accumulation among different individuals and other at-risk groups such as African-Americans and Hispanics. Marietta's water contains .99 mg/L, just above CDC upper limit recommended levels of .70 mg/L,which they revised in 2011 from 1.2 mg/L due to health concerns (from NaturalNews.com & own research). Yet at seemingly "low" levels there is still cause for concern; it's an non-nutritive chemical by-product of the aluminum and phosphate fertilizer industries, being administered by government to populations in the water. Is municipal water fluoridation still the best way for dental care? Stop and think.