How E Cigarettes Affect Your Lungs: Results of an Online Survey of Users E Cigarette Direct E cigarettes lower immunity to flu and other germs It's a Fact. Vaping Can Cause Popcorn Lung Poster ToucanEd Can Vaping Lead to Lung Cancer? Richmond University Medical Center 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. Vaping Related Illness and Lung Disease NEJM