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 If you vape, you inhale a lot of harmful substances. These can damage your heart and lungs. Vaping Impairs Vascular Function, Even Without Nicotine, Study Finds No Smoke Comes Out When I Exhale Vape Vaping causes short term damage to nose so