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. Pourquoi ma cigarette lectronique coule ? Cache paquet de cigarette en alu tui cigarette Mistersmoke Flavour chemicals in e cigarettes could damage lung tissue CBC Radio Electronic cigarettes, teenagers, mysterious lung disease and cannabis