Smoking and vaping are often compared, but neither is harmless. While they work differently, both can expose the lungs to addictive nicotine and harmful chemicals that impact breathing and overall health. Smoking Electronic Nicotine Delivery Systems and a Suggested Approach to Vaping Cessation Jasmine D. Gonzalvo, Bailey Constantine, Nathan Shrock, Ashley H. Vincent, 2016 Nicotine absorption from electronic cigarette use: comparison between first and new generation devices Scientific Reports Is Vaping Better Than Smoking? American Heart Association