How does the circulatory system and the respiratory system work together in our bodies?
  also causes calcium deficiency in the bones which can lead to osteoporosis, skeletal thinning, fractures, anemia, and rickets. Fluoride prematurely ages the body because it damages enzymes. This in turn affects the immune system, digestive system, respiratory system, blood circulation, kidneys, liver, thyroid and brain function. Fluoride can cause hyperactivity and a lower IQ in children. Numerous scientists, bio-chemists, toxicologists, physicians and dentists have spoken out against …
