The Return of Popcorn Lung? Let's Discuss My Vapery UK Popcorn lung: What is it, and who is at risk? Harvard Health Doctors have linked vaping to a rare, incurable lung condition called obliterative bronchiolitis, often referred to as popcorn lung. The disease permanently scars and narrows the lungs' airways, causing lifelong breathing problems. Popcorn Lung: A Dangerous Risk of Flavored E Cigarettes American Lung Association Vaping, popcorn lung, and EVALI , Its easy to get tricked by marketing and social pressures its easier said than done, but take this as a reminder to stop smoking or vaping , conorkilbridge