E Cigarettes and Associated Health Risks: An Update on Cancer Potential To achieve the Biden Cancer Moonshot, e cigarettes must be widely approved Salon.com 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 are likely to cause cancer, including in the lungs and mouth, according to a sweeping review of scientific evidence that challenges their positioning as a safer alternative to smoking. There is