A healthy mind is a terrible thing to lose, but due to man-made chemicals, the threat of brain function destruction is always present. These are potentially the most offensive perpetrators to the mind, but the good news is that there are easy ways to avoid them.
The decision to add fluoride to most public drinking water systems as a way to fight tooth decay has perhaps had the most insidious and widespread effect on the brains of people across North America.
The Fluoride Action Network (FAN) has reported on a study which found that fluoride is linked to lower IQ, even at the ranges added to U.S. water supplies. In all, FAN said that 34 studies now link fluoride to lower IQ levels in humans, while many other studies link fluoride to learning and memory impairment, fetal brain damage and altered neurobehavioral function.
One study sponsored by UNICEF found that IQ was reduced at just 0.88 mg/l of fluoride, a level that is considered within optimal range and is added to U.S. drinking water systems that serve over 200 million Americans every day.
Removing fluoride from your water supply is often as simple as installing a high-quality water filter.
For the rest of the story: http://www.naturalnews.com/045510_brain_toxins_fluoride_heavy_metals.html