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. The Misconceptions of Vaping The Truth Do Geek Bars Have Diacetyl? EightVape You Die From Does Vaping Cause Popcorn Lung? UK Vape Guide Can Geek Bars Cause Popcorn Lungs Symptoms