Smoke without fire: What's the truth on e cigarettes? New Scientist E cigarettes: How they work, risks, and research 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 E cigarettes linked with blood vessel damage National Institutes of Health (NIH) Since their introduction in Europe in 2006 and the U.S. in 2007, the use of e cigarettes a.k.a., vapes has skyrocketed. A recent review from researchers in Australia found the results