Vaping vs. smoking: what are the risks? Pacific Life Re How Long Does it Take for Your Lungs to Heal From Vaping? Smoking and Vaping National Institute of Environmental Health Sciences 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. Vaping: Understanding the Risks and Impacts on Health