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. He Tried E Cigarettes to Quit Smoking. Doctors Say Vaping Led to His Death. The New York Times E cigarette risk perceptions an American crime scene The Counterfactual Nouveau vapoteur ? Voici quelques conseils In early 2026, medical research has solidified the link between flavored e cigarettes and irreversible respiratory conditions, most notably bronchiolitis obliterans, commonly called "popcorn lung". This disease occurs when chemical flavoring agentssuch as E cigarettes may be harmful to health an annotated graphic Engineering & Technology magazine