Vaping harms your health Cancer Institute NSW Flavored e cigarettes are not harmless. Doctors are now seeing teens with permanent lung damage from vaping. In the U.S., a teenager developed popcorn lung after vaping in secret for three years. This Is There A Link Between E Cigarette Use And 'Popcorn Lung'? Vaping: Get the Facts. Protect Your Future Anne Arundel County Health Department Doctors Say Vaping May Be Causing 'Popcorn Lung' Does vaping cause Popcorn Lung? Vaperite