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 Prevalence and Distribution of E Cigarette Use Among U.S. Adults: Behavioral Risk Factor Surveillance System, 2016 Annals of Internal Medicine Centre set to issue advisory on health risks of e cigarettes Health risks of e cigarettes emerge