Guidance for Healthcare Providers on Evaluating and Tracking Patient Use of E Cigarettes or ENDS Products American Lung Association 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 What are the best mouth to lung (MTL) vape devices? E cigarette or Vaping Use Associated Lung Injury (EVALI) American Lung Association Vaping, Even Without Nicotine, Has Negative Effect on Lungs