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 IS NOT SAFE AND THE CANCER WARNING IS NOW MUCH STRONGER For years, vaping was sold as the safer option. But safer than cigarettes does not mean safe. A major Vapers Show Chemical Changes in Their DNA That Are Linked to Cancer Vaping and Lung Cancer Screening Capitol Imaging Services