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 Breast Cancer & E Cigarettes: Is Vaping a Safer Alternative to Smoking? Maurer Foundation Clearing the Air: The Harsh Reality of Vaping and Smokeless Products Leading to Cancer Current thinking about the effects of e cigarettes on oral cancer risk BDJ Team Most E cigarette Users Ages 18 to 29 Never Smoked Before American Cancer Society To achieve the Biden Cancer Moonshot, e cigarettes must be widely approved Salon.com