Experts warn that flavored e cigarettes can cause irreversible lung damage, as seen in a U.S. teenager who developed "popcorn lung"a severe and permanent condition called bronchiolitis obliteransafter secretly vaping for three years. E cigarettes cause lung condition known as EVALI : Revista Pesquisa Fapesp How Smoking vs Vaping Affects Your Lungs You Must See This ! ! Effects of ecigarettes and vaping devices on cardiac and pulmonary physiology Tsai 2020 The Journal of Physiology Wiley Online Library e Cigarettes, Vaping and the Risks of Severe Lung Disease Canyonlands Healthcare NIH Workshop on E Cigarette, or Vaping, Product Use Associated Lung Injury (EVALI): Developing a Research Agenda NHLBI, NIH