Vapers May Be Less Likely to Undergo Lung Cancer Screening MedPage Today E cigarette vapor linked to cancer in mice National Institutes of Health (NIH) Today's Fact Friday highlights an important truth. Both cigarettes and e cigarettes are harmful to your health. While some believe vaping is a safer alternative, studies show that one disposable vape can equal Prevalence of cigarette and e cigarette use among U.S. adults eligible for lung cancer screening based on updated USPSTF guidelines ScienceDirect