Smokers are seven times more likely than non-smokers to get lung cancer, a recent study by National University of Singapore (NUS) has shown. After tracking 45,900 Chinese from 1993 to 2007, the study also found that six years is all it takes to dramatically cut a smoker`s risk of getting the disease, The Straits Times reported. Six years after quitting, an ex-smoker`s chance of getting cancer is 28 per cent less than someone who is still smoking, reports English . Those who continue to stay off cigarettes have their risk of getting lung cancer halved. In other words, for every two smokers who get cancer, only one non-smoker would.
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