Did you know vaping and e cigarettes can lead to a condition called Popcorn Lung? Vaping may sound harmless, but it can seriously impact your breathing over time. Learn what causes it, how Experts say that flavored e cigarettes can 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, Ecigs, Water Vapour and The Lungs: Should You Be Concerned? E Cigarette Direct Does Vaping Cause Lung Cancer? What We Know (and Still Don't) Berry flavored vapes impair lung immune response What Does Vaping Do to Your Lungs? Johns Hopkins Medicine