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 E Cigarette effects on oral health: A molecular perspective ScienceDirect Juul Vape Settlement Does JUUL Cause Lung Cancer? Vaping 'likely' to cause lung and oral cancers, 'most definitive determination' to date finds Psychiatry.org Vaping is Unhealthy. Tips and Resources to Help Quit.