Latest Cochrane Review finds high certainty evidence that nicotine e cigarettes are more effective than traditional nicotine replacement therapy (NRT) in helping people quit smoking Cochrane Can vaping cause cancer? The evidence suggests it might. The Washington Post The Side Effects and Cancer Risk Associated with Vaping A comprehensive review of recent peer reviewed research provides the strongest evidence to date that using electronic cigarettes likely causes both oral and lung cancers in humans. https: modernsciences.org vaping likely causes oral lung cancer april E Cigarettes and Associated Health Risks: An Update on Cancer Potential