Teens who use e-cigarettes more likely to start smoking, study says

(Steven Senne | The Associated Press) In this Wednesday, April 11, 2018 photo, an unidentified 15-year-old high school student displays a vaping device near the school's campus in Cambridge, Mass. Schools and health officials across the U.S. are struggling to curb what they say is an epidemic of underage vaping. Officials say teens and children are getting easy access to e-cigarettes and other vaping devices, which heat liquid into an inhalable vapor that often contains nicotine. Two new studies of e-cigarettes may bolster the U.S. government’s efforts to stem what it calls a growing epidemic of youth vaping.

Children and teens who had used e-cigarettes were four times more likely to have…