Experts show that flavored e cigarettes cause irreversible lung damage. A U.S. teen developed "popcorn lung" after secretly vaping for 3 years a permanent, life altering disease. Officially known as bronchiolitis obliterans, the Does vaping cause lung cancer? UT MD Anderson Risks Of Vaping A Chemical Found In Vape Flavors Linked To Irreversible Condition Called 'Popcorn Lung' Small Joys Popcorn Lung From Vaping Marijuana Australia What is Popcorn Lung? Galaxy Vapes Inc. Can vaping damage your lungs? What we do (and don't) know Harvard Health