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 Vaping related lung transplant performed at Detroit hospital PBS News Lungs After Smoking: Understanding Popcorn Lung from Vaping E cigarette vapor linked to cancer in mice National Institutes of Health (NIH) VAPING & VAP: Lungs Under Attack