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 Electronic Cigarettes Work HowStuffWorks An e cigarette is a battery operated device that heats liquid nicotine, flavoring, and other additives to create an aerosol. This JAMA Patient Page describes e cigarettes and the potential health effects of vaping. https: ja.ma 4dbZqrL Vaping and the Brain: Effects of Electronic Cigarettes and E Liquid Substances The Journal of Neuropsychiatry and Clinical Neurosciences The Beginners Guide to Electronic Cigarettes