High fluoride exposure linked to lower IQ: review

A review of 74 medical studies links higher fluoride exposure to lower IQ in kids — but mostly draws on research that took place outside of the U.S. and had a high risk of biased results. Why it matters: The federally funded analysis could further stoke the debate over adding fluoride to drinking water as Robert F. Kennedy Jr., who's called for ending the practice, is poised to take over the Health and Human Services Department. The big picture:...