The risks of vape pens' secondhand aerosols Exploring The Potential Health Effects of Vaping Products 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 The Dangers of Vaping How E Cigarettes Affect Student Health Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN