Vaping: what we know and what we don't about e cigarettes Lung cancer risks persist with e cigarette use after quitting tobacco smoking Study title 61% of ex smokers who use e cigarettes say they vape to help them stop smoking. Research so far shows that vaping is far safer than smoking. Find out more: http: po.st 2FpW7T Cancer Research UK Similar DNA changes found in cells of both smokers and e cigarette users UCL News UCL University College London Study Claiming Vaping 'Likely' Causes Cancer Faces Backlash Tobacco Reporter