How Switching to E Cigarettes After Smoking Cessation Affects Lung Cancer Risk Massachusetts new vaping campaign done with student input masslive.com Comparing the cancer potencies of emissions from vapourised nicotine products including e cigarettes with those of tobacco smoke Tobacco Control Vaping harms your health Cancer Institute NSW E cigarettes are likely to cause cancer, including in the lungs and mouth, according to a sweeping review of scientific evidence that challenges their positioning as a safer alternative to smoking. There is