How to Vape: A Beginner's Guide to Inhaling OK Vape If you vape, you inhale a lot of harmful substances. These can damage your heart and lungs. 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 refers to the act of inhaling and exhaling aerosol, often called vapor, produced by an electronic cigarette or similar device. These devices heat a liquid that usually contains nicotine, flavorings, and How Inhaling Drugs Affects the Immune System FHE Health Understanding the Risks of Vaping on Lung Health