Popcorn lung: What is it, and who is at risk? Harvard Health What Chemicals Does Vaping Cause Popcorn Lung? : R Vaping Is Popcorn Lung Irreversible Bronchiectasis from Vaping for 5 years : r stopsmoking Experts warn that flavored e cigarettes can cause irreversible lung damage, as seen in a U.S. teenager who developed popcorn lunga severe and permanent condition called bronchiolitis The Promise of Vaping and the Rise of Juul The New Yorker