Hypothyroidism is now rampant and debilitating. Fluoride can reduce the function of the thyroid.

 

Drinking fluoride can effect the thyroid in profound and real ways.  Do you have thyroid issues?  

 
Must watch film: Is Drinking Fluoride Safe? (5 minutes)

 

"In summary, evidence of several types indicates that fluoride affects normal endocrine function or response; the effects of the fluoride-induced changes vary in degree and kind in different individuals. Fluoride is therefore an endocrine disruptor in the broad sense of altering normal endocrine function or response, although probably not in the sense of mimicking a normal hormone." 

(pg 266: "Fluoride in Drinking Water: A Scientific Review of EPA's Standards (2006")