E Cigarettes and Cardiovascular Health: The Risks of Vaping The Cardiology Advisor 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 cigarettes and vaping DrugWise E Cigarettes upsc What are e cigarettes? What are the arguments in favour of E cigarettes? What is an e cigarette? BBC Science Focus Magazine