Health effects and known pathology associated with the use of E cigarettes ScienceDirect Vaping an overview ScienceDirect Topics ICYMI: How e cigarettes can break your heart Physicians for a Smoke Free Canada Experts warn that flavored e cigarettes can cause irreversible lung damage, as seen in a U.S. teenager who developed "popcorn lung"a severe and permanent condition called bronchiolitis obliteransafter secretly vaping for three years. E cigarette use increases risk for developing major respiratory diseases After coronary angioplasty, quitting smoking with the help of e cigarettes reduces the risk of complications Prevention Observatory of the Montreal Heart Institute