It is imperative to the health of all citizens to gain knowledge about what they are consuming on a daily basis. Fluoride chemicals added to Florida's water supply were never safety-tested and are lead- and arsenic-laced industrial waste-products (hydrofluosiclicic acid). "Even in small quantities, sodium fluoride is a deadly poison to which no effective antidote has been found. Every exterminator knows that it is the most efficient rat-killer. ... Sodium fluoride is entirely different from organic calcium-fluoro-phosphate needed by our bodies and provided by nature to build and strengthen our bones and our teeth. This organic calcium-fluoro-phosphate, derived from proper foods, is an edible organic salt, insoluble in water and assimilable by the human body, whereas the non-organic sodium fluoride used in fluoridating water is instant poison to the body and fully water soluble.In its advanced stages, fluorosis can resemble a multitude of bone/joint diseases. According to the National Toxicology Program, "the preponderance of evidence" from laboratory 'in vitro' studies indicates that fluoride is a mutagenic compound. Many substances which cause mutagenic damage also cause cancer. While the concentrations of fluoride causing mutagenic damage in laboratory studies are higher than the concentrations found in human blood, there are certain "microenvironments" in the body (e.g. the bones and the bladder) where the concentrations of fluoride can accumulate to levels comparable to, or in excess of, those causing mutagenic effects in the laboratory. Fluoride's ability to damage the brain represents one of the most active areas of research on fluoride toxicity today. 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. Several recent studies have found that even adult exposures to fluoride may result in central nervous system disturbances, particularly among industrial workers. There are many more harmful health effects that is associated with fluoride.