What's behind a vaping illness outbreak in the US? Vaping isn't just a trendit's a growing health risk. Studies have linked e cigarette use to serious lung conditions like Bronchiolitis Obliterans, often called popcorn lung, which damages the smallest airways and permanently Is Vaping Worse Than Smoking? Health News Hub Can vaping damage your lungs? What we do (and don't) know Harvard Health Vaping Related Illness and Lung Disease NEJM Imaging of Vaping Associated Lung Disease New England Journal of Medicine