Smoker's lungs vs. healthy lungs: Facts, pictures, and more E cigarette, or Vaping Product, Use Associated Lung Injury (EVALI) Fact Sheets Yale Medicine Health experts warn that flavored e cigarettes may lead to permanent lung damage. A U.S. teenager was diagnosed with "popcorn lung" after covertly vaping for three years, resulting in a lifelong, debilitating condition. Does Vaping Cause Lung Cancer? INTEGRIS Health