Critical Clues on E cigarette, or Vaping, Product Use Associated Lung Injury CDC New lung scans prove vaping is toxic. The science is officially in. Scans show that teens have developed "popcorn lung" as a result of vaping. It's a permanent, chronic disease that shortens CDC recommends that you should not use e cigarette, or vaping, products that contain THC, particularly from informal sources. Data suggest these products play a major role in the current lung injury outbreak. 2FIRSTS The Dangers of Health E Cigarettes for Lung Damage: Study