This lung damage from e cigarettes is permanent and entirely preventable. Flavored e cigarettes, often marketed with candy like appeal, may be far more dangerous than they seem. A recent case involving a U.S. Science & Tech Spotlight: E cigarettes U.S. GAO Vaping Possible Negative Effects on Lungs: State of the Art From Lung Capacity Alteration to Cancer Cureus Can vaping damage your lungs? What we do (and don't) know Harvard Health