Fact One of the most serious and least discussed dangers of vaping is a condition known as popcorn lung, medically called bronchiolitis Instagram Popcorn lung: What is it, and who is at risk? Harvard Health E cigarettes can result in 'Popcorn Lung' Popcorn Lung: A Dangerous Risk of Flavored E Cigarettes American Lung Association Ontario teen's vaping injury consistent with 'popcorn lung,' study suggests CBC News Did you know some flavored vapes contain diacetyl, a chemical linked to popcorn lunga rare, irreversible lung disease? It scars the small airways, making it hard to breathe. Symptoms can mimic