Vaping Devices: Pod, Pen, Mods Key Differences Explained! E Cigarettes are Popular But What Does Vaping Do to Your Body? It's official. Flavored e cigarettes cause permanent lung damage. And doctors are already seeing it happen. In the United States, a teenager developed something called popcorn lung after secretly vaping for three years. Inhale this: What does vaping do to your lungs? Teenager suffers collapsed lung after vaping left him unable to breathe and coughing up blood ITV News Granada