Vaping vs Cigarettes Health Impacts Compared Health Problems Caused by Secondhand Smoke Smoking and Tobacco Use CDC Tobacco Smoke, Vaping, and Asthma AAFA.org 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 Early research says secondhand smoke from vaping may not be as bad as cigarettes, but it's still not harmless. https: fox59.com news national world does vaping cause secondhand smoke doctors explain the side effects