Flavored e cigarettes may lead to permanent lung damage, experts warn. A U.S. teenager was diagnosed with bronchiolitis obliteranscommonly known as "popcorn lung"after vaping in secret for three years. This rare and irreversible The Impact of Smoking and Vaping on Respiratory Health Blog New study comes the closest yet to proving that e cigarettes aren't as dangerous as smoking Smoke Shops For Sale BizBuySell