How Switching to E Cigarettes After Smoking Cessation Affects Lung Cancer Risk Juul Vape Settlement Does JUUL Cause Lung Cancer? U of M study shows cancer risk in e cigarettes Health Effects Vaping Information, Solutions & Interventions Toolkit Stanford Medicine 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