Repeated long term exposure to fluoride is known to cause:
  1. Impaired immunity
  2. Low thyroid function
  3. Skeletal fluorosis
    (an arthritic-like, incurable, crippling disease involving thickening of the bones and destruction of nerves)
  4. Dental fluorosis in children
    (discoloration and mottling of the teeth)*
* Ironically, dental health is the alleged, "reason," for putting fluoride in toothpaste and in public water supplies.

(1) Dr. John Yiamouyiannis, Fluoride the Aging Factor, Second Edition, Health Action Press, 1986, p.22-24.
(2) Ibid, p. 20.         (3) Ibid, p. 40-48.         (4) Ibid, p. 34-39.