Research so far shows that legal e cigarettes are far less harmful than smoking, and can be an effective way of helping people who smoke to quit. However, there isn't enough research yet An often made claim that e cigarettes are '95% safer' is not valid VCU News Virginia Commonwealth University E cigarette users '15% more likely to have a stroke at middle age than smokers' Vaping Isn't 'Creating Next Generation of Addicts' and More! How many US adult smokers have quit with e cigarettes? The CDC's National Health Interview Survey shows 4.8 million adults vape nicotine and have quit smoking completely. This number does not Charles Study Reveals E Cigarette Users Smoke Less and Increase Quit Attempts