New lung scans prove vaping is toxic. The science is officially in. Scans show that teens have developed "popcorn lung" as a result of vaping. It's a permanent, chronic disease that shortens What Chemicals Does Vaping Cause Popcorn Lung? : R Vaping Is Popcorn Lung Irreversible Do I Have Doctors Warn Of 'Popcorn Lung' Epidemic Among Teens As Vaping Related Australia Is Popcorn Lung Irreversible E Cigarettes and Vaping PPAC Central