The Truths Behind Vaping: Information for Youth and Teens USU Switching from smoking to vaping dramatically reduces cancer risk Dr Colin Mendelsohn 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 Scientists Warn: Vaping Likely Causes Cancer E cigarettes are likely to cause lung cancer and oral cancer