The Best Health Breakthroughs for November 2013

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The Best Health Breakthroughs for November 2013

A dirty secret about hand-washing, and more of the latest research you need to stay healthy.

It’s been drilled into your head to have your teeth cleaned twice a year—or else. But a University of Michigan review of 16 years of insurance claims found that for patients without high-risk factors for periodontal disease (smoking, diabetes, family history of gum disease), once a year was enough.

Though saying “ah” is never a bad thing: “Dentists may recognize symptoms of serious diseases—diabetes, cancer—which often manifest as signs inside the mouth,” says the Academy of General Dentistry’s John Comisi, D.D.S.

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