Vaping in children and teens: smoke without fire? The child vaping crisis: 'From what my daughter says, 90% of her year do it' Vaping The Guardian Vaping Possible Negative Effects on Lungs: State of the Art From Lung Capacity Alteration to Cancer Cureus Vaping: Safer than cigarettes or a new health crisis? Yes, vaping is toxic. A U.S. teen developed "popcorn lung" after secretly vaping for three years a permanent, life altering disease. Officially known as bronchiolitis obliterans, the condition scars the lungs' tiniest