The Side Effects and Cancer Risk Associated with Vaping New study comes the closest yet to proving that e cigarettes aren't as dangerous as smoking Researchers now warn that nicotine based e cigarettes are likely carcinogenic, meaning they have the potential to cause cancer, specifically in the lungs and mouth. Learn more in our weekly news roundup. https: t.co i4xGiCxD0t Young adult cancer survivors more likely than peers to use e cigarettes Prevalence of cigarette and e cigarette use among U.S. adults eligible for lung cancer screening based on updated USPSTF guidelines ScienceDirect