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 Research: E cigarettes Tobacco Insider The Sooner Smokers Quit Smoking the More Their Cancer Risk is Reduced. What About Vaping? Vaping Post