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 Shock Study: E Cigarettes May Be More Harmful Than Tobacco To Heart Health E cigarettes may be more harmful than you think. If you're still using these devices, it's time to reconsider for the sake of your health. Click here to learn more about the risks E Cigarettes and Vaping OHSU E Cig Vapor vs. Tobacco Smoke: Which Is More Harmful? White Cloud White Cloud Electronic Cigarettes