If you vape, you inhale a lot of harmful substances. These can damage your heart and lungs. 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 Vaping causes short term damage to nose so only exhale through mouth Metro News Are No Nicotine Vapes Safe to Use? Side Effects & Risks how to do the french inhale simple and easy