"New research published in The Lancet by researchers from the Harvard School of Public Health (HSPH) and the Icahn School of Medicine at Mount Sinai (ISMMS) found that various chemicals that many children are exposed to are having a direct effect on the creation of disorders labelled under the name ADHD as well as other mental disorders. One of the chemicals said to be having an effect is fluoride, or variations of fluoride. Governments have been performing artificial fluoridation for a number of years regardless of the lack of effectiveness it has in preventing tooth decay."