【NPR新闻】吸烟者的福音？(2/3)
Women smoke in New York City's Times Square.
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Jha
St. Michael's Hospital
Toronto
oh
Dr. Michael Eriksen
Georgia State University
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http://t1.g.hjfile.cn/listen/201301/201301270918408715453.mp3Jha, from St. Michael's Hospital in Toronto, says the new data also quantify the terrible costs of smoking for all smokers more precisely than ever.
What we found in studying over 220,000 adult Americans, is that smoking leads to a loss of about a decade of life.
And long-term smoking reduces a smoker's chances of living to the age of 80 by half. But Jha says there are also bigger benefits from quitting than most people have thought. A long-term smoker who quits before age 40 actually turns back the clock on his risk of dying - gaining back nine out of the ten years of life he'd have lost if he hadn't stopped.
It's a very encouraging message, you know. And if you think about the average, let's say, 45-year-old smoker in the United States, they probably started when they were age 15. They might be smoking for a quarter of a century. And they might think, oh, it's too late. There's no point for me to quit, because the damage is done. But that's not true.
And there is substantial benefit from quitting at older ages too. Quitting by age 50 means about six years of life gained back, and quitting by age 60 buys you back four years of the ten you'd lose if you didn't quit. Dr. Michael Eriksen of Georgia State University says looking at it this way may motivate more people to quit, because they can relate it to their own lives.
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