Health experts are sounding the alarm about a serious condition linked to vaping, known as "popcorn lung" or bronchiolitis obliterans. This irreversible lung disease is caused by harmful chemicals, like diacetyl, found Ontario teen's vaping injury consistent with 'popcorn lung,' study suggests CBC News Is Popcorn Lung Caused By Vaping? Health Risks of Vaping: Electronic Cigarettes Now and Later Alabama Cooperative Extension System Popcorn Lung vs. Lung Cancer: Understanding the Critical Differences (and Why It Matters) Popcorn Lung (Bronchiolitis Obliterans): Causes & Treatment