Public Health Consequences of E Cigarettes: 9780309468343: Medicine & Health Science Books @ Amazon.com 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 Health Groups Challenge FDA Delay on E cigarette Regulation RT Johns Hopkins Medicine Team Proposes Ways to Regulate and Better Manage E Cigarette Use Johns Hopkins Medicine