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 E Cigarettes, Vaping, and Other Electronic Nicotine Products: Harm Reduction Pathways or New Avenues for Addiction? Psychiatric Times Alert! e cigarettes may be as harmful as tobacco smoking, says study Vaping: Safer than cigarettes or a new health crisis? Why Are E Cigarettes Safer Than Cigarettes Vape Blog