I was a heavy and smoker of many decades until several months ago when a friend of mine showed me one of these devices. I tried it and after two days I stopped smoking tobacco cigarettes completely and have not done so since. Another friend of mine, who had tried various methods to stop smoking over the last few decades, has also now moved to ‘vaping’. Speaking from my personal experience, besides feeling the near immediate health benefits, I have no doubt that the e-cigarette has probably prolonged my life considerably.