Tobacco Harm Reduction: Risk Perceptions A recent case involving a U.S. teenager who developed Bronchiolitis Obliterans, commonly called popcorn lung, after three years of secretly vaping has raised serious concerns about the risks of e cigarettes. This irreversible Vape Mythbusting: Debunking 7 Common Myths Popcorn lung: Causes, symptoms, and treatment Vaping Safety, Smoking, Dangers, Pros, Cons, Debate, E cigarettes, & Tobacco Britannica Vaping harms your health Cancer Institute NSW