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 What Vaping Does to the Body Vaping can cause EVALI, a serious form of lung injury. #lungs #pulmonary #vaping #vape #smoke #smoker #smoking Is vaping safer than smoking? A pulmonologist weighs in.