People seeking to stay healthy can get their exercise in small increments of just a few minutes at a time, according to new guidelines issued by the American government that again encourage a largely sedentary nation to start moving.

美国政府新发布了一份指南，希望鼓励这个久坐不动的国家多动一动；而根据这份新指南，那些想保持健康的人现在每次只需运动小几分钟就可以了。

The guidance from a committee appointed by the Department of Health and Human Services of America does away with the official government position that physical activity should occur in sessions of at least 10 minutes.

这份指南来自美国的健康与人类服务部指派的一个委员会，它表达的意见和政府的官方说法不同，后者认为运动应该至少持续10分钟。

"Current evidence shows that the total volume of moderate-to-vigorous physical activity is related to many health benefits; bouts of a prescribed duration are not essential," the committee of health experts wrote.

委员会的健康专家写到：“目前的证据显示，只要中等至较大强度运动的总时长足够，就能带来很多健康益处，而单次运动的时长则并不是很重要。”

"Sit less, move more. Whatever you do, it really all counts," Brett P. Giroir, assistant secretary for health at HHS, said in an interview.

健康与人类服务部的助理健康书记官Brett P. Giroir说：“少坐一点，多动一点。不管你怎么动，真的都有用。”

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