Know the facts about e cigarettes 5 Things You Need to Know About E Cigarettes Good Morning America Electronic cigarettes (e cigarettes) are sometimes called e cigs, vapes, vape pens, and electronic nicotine delivery systems (ENDS). E cigarettes come in many shapes and sizes. Most e cigarettes contain nicotine. Get the facts about e cigarettes, E Cigarette How E Cigarettes Work, Health Risks & Teen Use Learn about the risks of e cigarette and vape pen use from the Stanford REACH Lab. This social graphic was developed by the Stanford REACH Lab, a Stanford research lab focused on promoting