Copy into your RSS Reader
Copy into your Podcast App
April 27, 2015 Excess fluoride consumption is leading to tiny white marks on many people's teeth. It's mainly a cosmetic problem, but one that could be solved by lowering the fluoride in drinking water.
<iframe src="http://www.npr.org/player/embed/402579949/402632476" width="100%" height="290" frameborder="0" scrolling="no">
Twenty percent of Americans think that cellphones cause cancer and that the government and big corporations are covering this up.
March 19, 2014 Despite evidence to the contrary, many Americans believe cellphones cause cancer and that health officials are covering it up. Discredited theories about vaccines and fluoridation also remain popular.
Demonstrator China Starshine holds up signs outside of City Hall in Portland last week.
Ross William Hamilton/The Oregonian/AP
September 12, 2012 Portland, Ore., is the largest American city not to add fluoride to its drinking water. Activists have been vocal, for and against a proposal to change that. The science shows that fears of side effects from small amounts of fluoride to protect teeth are unfounded.
<iframe src="http://www.npr.org/player/embed/161003171/161026512" width="100%" height="290" frameborder="0" scrolling="no">
NPR thanks our sponsors
Become an NPR sponsor