Australian researchers have issued one of the strongest warnings yet about vaping, saying a major review of evidence suggests e cigarettes are likely to cause lung and oral cancer. The review found signs 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 Vaping vs. smoking: what are the risks? Pacific Life Re Most E cigarette Users Ages 18 to 29 Never Smoked Before American Cancer Society Lung cancer risks persist with e cigarette use after quitting tobacco smoking