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        每天走4000步足以保持健康
        文章來源:未知 文章作者:enread 發布時間:2019-06-04 08:54 字體: [ ]  進入論壇
        (單詞翻譯:雙擊或拖選)
        There's nothing magical about the number 10,000.
         
        一萬這個數字沒什么神奇的。
         
        In fact, the idea of walking at least 10,000 steps a day for health goes back decades to a marketing1 campaign launched in Japan to promote a pedometer. And, in subsequent years, it was adopted in the US as a goal to promote good health. It's often the default setting on fitness trackers, but what's it really based on?
         
        "The original basis of the number was not scientifically determined," says researcher I-Min Lee of Brigham and Women's Hospital.
         
        She was curious to know how many steps you need to take a day to maintain good health and live a long life, so she and her colleagues designed a study that included about 17,000 older women. Their average age was 72. The women all agreed to clip on wearable devices to track their steps as they went about their day-to-day activities.
         
        It turns out that women who took about 4,000 steps per day got a boost in longevity2, compared with women who took fewer steps. "It was sort of surprising," Lee says.
         
        In fact, women who took 4,400 steps per day, on average, were about 40 percent less likely to die during the follow-up period of about four years compared with women who took 2,700 steps. The findings were published Wednesday in JAMA Internal Medicine.
         
        Another surprise: The benefits of walking maxed out at about 7,500 steps. In other words, women who walked more than 7,500 steps per day saw no additional boost in longevity.


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        1 marketing Boez7e     
        n.行銷,在市場的買賣,買東西
        參考例句:
        • They are developing marketing network.他們正在發展銷售網絡。
        • He often goes marketing.他經常去市場做生意。
        2 longevity C06xQ     
        n.長命;長壽
        參考例句:
        • Good habits promote longevity.良好的習慣能增長壽命。
        • Human longevity runs in families.人類的長壽具有家族遺傳性。
        TAG標簽: health walking steps
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