New study comes the closest yet to proving that e cigarettes aren't as dangerous as smoking 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 Evidence update on the cancer risk of vaping e cigarettes: A systematic review Breast Cancer & E Cigarettes: Is Vaping a Safer Alternative to Smoking? Maurer Foundation VAPING PREVENTION & QUIT RESOURCES: TIPS FOR PARENTS & SCHOOLS PUBLIC HEALTH INSIDER