Yes, vaping is toxic and the consequences can be permanent. A U.S. teenager developed popcorn lung a life altering, incurable condition after secretly vaping flavored e cigarettes for Vaping Hazards & Evolving Regulations for 2024! Qualitas Health The Mysterious Vaping Illness That's 'Becoming an Epidemic' The New York Times Protein thiol oxidation in the rat lung following e cigarette exposure ScienceDirect E Cigarette, or Vaping, Product Use Associated Lung Injury (EVALI) with Acute Respiratory Failure Clear The Air News Tobacco Blog Clear The Air News Tobacco Blog 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.