In the article entitled Dumbing Down Society Pt I: Foods, Beverages and Meds, I wrote that fluoride was a toxic chemical that caused the deterioration of cognitive functions when ingested. In other words, swallowing fluoride makes you dumber. Despite the fact that some communities have recently managed to gather enough support to get their cities to stop water fluoridation (see Pinellas County in Florida), millions of people are still unaware of the dangers of fluoride and still consume great amounts of it.
In this video, a dentist describes the brain numbing effects of fluoride when consumed in unhealthy doses.