Vaping' Increases Odds of Asthma and COPD Johns Hopkins Medicine 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 Vaping Marijuana Failed to Help COPD Symptoms RT COPD: Smoking's Devastating Impact & Vaping Risks Vaping doubles risk of serious lung disease, even without smoking history study Professor Erwin Loh National Emphysema Foundation National Emphysema Foundation