The issue of whether electronic cigarettes are a successful smoking cessation aid has been one of the key health debates of 2014. Now, a new Cochrane review finds evidence that e-cigarettes can help smokers reduce or stop smoking.

Although many smokers want to quit, few successfully give up in the long term. Nicotine patches and gum are standard aids for smoking cessation, but recently, e-cigarettes have significantly overtaken these products in popularity among smokers.

However, this trend has concerned some researchers, who have reported mixed results as to whether e-cigarettes promote or reduce smoking behaviors.

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