Vaping makes lung bacteria more harmful and cause more inflammation Vaping or Smoking Which is More Dangerous for your Lungs? CritiCare Hospital 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. Shocking Public Health England Video PROVES Vaping Is Less Harmful Than Smoking Ecigclick