Comparing the cancer potencies of emissions from vapourised nicotine products including e cigarettes with those of tobacco smoke Tobacco Control E cigarettes and cancer Australian researchers have issued one of the strongest warnings yet about vaping, saying a major review of evidence suggests e cigarettes are likely to cause lung and oral cancer. The review found signs Vaping, Environmental Toxicants Exposure, and Lung Cancer Risk E cigarette vapor linked to cancer in mice National Institutes of Health (NIH) Vaping may increase risk of cancer and heart disease, finds study The Independent The Independent