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. Vaping harms your health Cancer Institute NSW Lung Injuries Associated with Use of Vaping Products FDA Vaping related pulmonary granulomatous disease ScienceDirect Vaping could be more harmful to lungs than smoking cigarettes ACTION NEEDED: E CIGARETTES