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 Dual cigarette and e cig use increases human risk of lung cancer 40 times Stanton Glantz blog We were shocked': Vaping considerably increases lung cancer risk among people who smoke Evidence update on the cancer risk of vaping e cigarettes: A systematic review Can You Get Lung Cancer From Vaping SMOKO E Cigarettes