Read about medical advances and research in Seattle and worldwide. Topics include treatments; surgery; diseases such as Zika; studies of the human brain, heart and cancer; mental health; drugs and vaccinations; and Medicare, the Veterans Administration (VA) and the Affordable Care Act, aka Obamacare. Institutions include the Hutch, UW Medicine, Harborview, Virginia Mason, Group Health and Swedish.

Addicted to vaped nicotine, teenagers have no clear path to quitting

The proportion of U.S. high school seniors who are vaping tobacco products nearly doubled in the past year, with more than 1 in 5 now saying they have vaped to get a hit of nicotine in the past 30 days, according to a new study. (Ded Mityay/Dreamstime/TNS) 1258320 1258320

A harsh irony underlies the search for solutions: The devices that manufacturers designed to help adults quit smoking have become devices that teenagers who never smoked are themselves fighting to quit.

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