FluorideAlert.org: Health effects on the Brain (http://www.fluoridealert.org/issues/health/brain/#human)

“Fluoride’s ability to damage the brain is one of the most active areas of fluoride research today. In the past three decades, over 100 studies have found that fluoride exposure can damage the brain….”

FluorideAlert.org: Health Effects: Fluoride and Health
This site collects together studies for 15 categories:

Acute Toxicity
Arthritis
Bone Fracture
Brain Effects
Cancer
Cardiovascular Disease
Diabetes
Endocrine Disruption
Gastrointestinal Effects
Hypersensitivity
Kidney Disease
Male Fertility
Pineal Gland
Skeletal Fluorosis
Thyroid Disease