E-cigarettes has been given an emphatic thumbs up by health experts after the first long-term study of its effects in ex-smokers. Photograph: Yui Mok/PA Wire

Vaping has been given an emphatic thumbs up by health experts after the first long-term study of its effects in ex-smokers. After six months, people (...)

A casino patron exhales vapour from an e-cigarette in Las Vegas. A study carried out by the internationally regarded Cochrane Library has found a third of long-term smokers were able to cut their cigarette consumption in half by using e-cigarettes. Photograph: Sandy Huffaker/New York Times

Electronic cigarettes are as effective as nicotine patches in helping smokers to quit the habit, according to international research.The study, carrie(...)