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 cigarettes may be harmful to health an annotated graphic Engineering & Technology magazine Cigarette lectronique vapoteuse et effets sur la sant Cancer Environnement He Tried E Cigarettes to Quit Smoking. Doctors Say Vaping Led to His Death. The New York Times Nouveau vapoteur ? Voici quelques conseils