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 What to know about the health impact if you're caught in a cloud of someone's vape smoke: https: fox8.com news nexstar media wire does vaping cause secondhand smoke doctors explain the side effects 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.