E Cigarettes and Breast Cancer: Is Vaping Really Safer? Vaping can cause cancer, say researchers but still isn't as damaging as smoking cigarettes. More than 5.5 million Britons currently use e cigarettes, which have long been viewed as a safer alternative New study comes the closest yet to proving that e cigarettes aren't as dangerous as smoking Can vaping cause cancer? The evidence suggests it might. The Washington Post We were shocked': Vaping considerably increases lung cancer risk among people who smoke