New research suggests that vapes are likely to cause oral and lung cancer. Read about the study via the link in the comments. Untitled Research so far shows that legal e cigarettes are far less harmful than smoking, and can be an effective way of helping people who smoke to quit. However, there isn't enough research yet Psychiatry.org Vaping is Unhealthy. Tips and Resources to Help Quit. Comparing the cancer potencies of emissions from vapourised nicotine products including e cigarettes with those of tobacco smoke Tobacco Control Pooled prevalence of lifetime (current and former) e cigarette use Download Scientific Diagram