Vaping, e cigarettes linked to 215 cases of severe lung illness in 25 states, including Pa., N.J. Study links chronic vaping to progressive lung damage Harvard Gazette New lung scans prove vaping is toxic. The science is officially in. Scans show that teens have developed "popcorn lung" as a result of vaping. It's a permanent, chronic disease that shortens Links to E Cigarette Resources American Lung Association Thirdhand Vapor from E cigarettes Damages the Lungs of Mice Thirdhand Smoke Resource Center