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 Local health officials say FDA's moves against teen vaping 'epidemic' aren't enough Los Angeles Times Health Groups Challenge FDA Delay on E cigarette Regulation RT E cigarette smoking linked to heart disease risk Johns Hopkins Medicine Team Proposes Ways to Regulate and Better Manage E Cigarette Use Johns Hopkins Medicine