New American research suggests that boys exposed to fluoride between the ages of five and 10 will suffer an increased rate of osteosarcoma - bone cancer - bet-ween the ages of 10 and 19.
The increased cancer risks, identified in a newly available study conducted at the Harvard School of Dental Health, were found at fluoride exposure levels common in both the US and Britain. It was the first examination of the link between exposure to the chemical at the critical period of a child's development and the age of onset of bone cancer.