Frontiers Pulmonary function and physical performance in adolescent e cigarette users: a narrative review The Mysterious Vaping Illness That's 'Becoming an Epidemic' The New York Times What are the respiratory effects of e cigarettes? The BMJ This lung damage from e cigarettes is permanent and entirely preventable. Flavored e cigarettes, often marketed with candy like appeal, may be far more dangerous than they seem. A recent case involving a U.S.