一天运动多久算健康？可能比你想的短
<p><span word="People">People</span> <span word="seeking">seeking</span> <span word="to">to</span> <span word="stay">stay</span> <span word="healthy">healthy</span> <span word="can">can</span> <span word="get">get</span> <span word="their">their</span> <span word="exercise">exercise</span> <span word="in">in</span> <span word="small">small</span> <span word="increments">increments</span> <span word="of">of</span> <span word="just">just</span> <span word="a">a</span> <span word="few">few</span> <span word="minutes">minutes</span> <span word="at">at</span> <span word="a">a</span> <span word="time">time</span>, <span word="according">according</span> <span word="to">to</span> <span word="new">new</span> <span word="guidelines">guidelines</span> <span word="issued">issued</span> <span word="by">by</span> <span word="the">the</span> <span word="American">American</span> <span word="government">government</span> <span word="that">that</span> <span word="again">again</span> <span word="encourage">encourage</span> <span word="a">a</span> <span word="largely">largely</span> <span word="sedentary">sedentary</span> <span word="nation">nation</span> <span word="to">to</span> <span word="start">start</span> <span word="moving">moving</span>.</p><p>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。</p><p><span word="The">The</span> <span word="guidance">guidance</span> <span word="from">from</span> <span word="a">a</span> <span word="committee">committee</span> <span word="appointed">appointed</span> <span word="by">by</span> <span word="the">the</span> <span word="Department">Department</span> <span word="of">of</span> <span word="Health">Health</span> <span word="and">and</span> <span word="Human">Human</span> <span word="Services">Services</span> <span word="of">of</span> <span word="America">America</span> <span word="does">does</span> <span word="away">away</span> <span word="with">with</span> <span word="the">the</span> <span word="official">official</span> <span word="government">government</span> <span word="position">position</span> <span word="that">that</span> <span word="physical">physical</span> <span word="activity">activity</span> <span word="should">should</span> <span word="occur">occur</span> <span word="in">in</span> <span word="sessions">sessions</span> <span word="of">of</span> <span word="at">at</span> <span word="least">least</span> 10 <span word="minutes">minutes</span>.</p><p>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。</p><p>"<span word="Current">Current</span> <span word="evidence">evidence</span> <span word="shows">shows</span> <span word="that">that</span> <span word="the">the</span> <span word="total">total</span> <span word="volume">volume</span> <span word="of">of</span> <span word="moderate">moderate</span>-<span word="to">to</span>-<span word="vigorous">vigorous</span> <span word="physical">physical</span> <span word="activity">activity</span> <span word="is">is</span> <span word="related">related</span> <span word="to">to</span> <span word="many">many</span> <span word="health">health</span> <span word="benefits">benefits</span>; <span word="bouts">bouts</span> <span word="of">of</span> <span word="a">a</span> <span word="prescribed">prescribed</span> <span word="duration">duration</span> <span word="are">are</span> <span word="not">not</span> <span word="essential">essential</span>," <span word="the">the</span> <span word="committee">committee</span> <span word="of">of</span> <span word="health">health</span> <span word="experts">experts</span> <span word="wrote">wrote</span>.</p><p>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。”</p><p>"<span word="Sit">Sit</span> <span word="less">less</span>, <span word="move">move</span> <span word="more">more</span>. <span word="Whatever">Whatever</span> <span word="you">you</span> <span word="do">do</span>, <span word="it">it</span> <span word="really">really</span> <span word="all">all</span> <span word="counts">counts</span>," <span word="Brett">Brett</span> <span word="P">P</span>. <span word="Giroir">Giroir</span>, <span word="assistant">assistant</span> <span word="secretary">secretary</span> <span word="for">for</span> <span word="health">health</span> <span word="at">at</span> <span word="HHS">HHS</span>, <span word="said">said</span> <span word="in">in</span> <span word="an">an</span> <span word="interview">interview</span>.</p><p>健康与人类服务部的助理健康书记官<span word="Brett">Brett</span> <span word="P">P</span>. <span word="Giroir">Giroir</span>说：“少坐一点，多动一点。不管你怎么动，真的都有用。”</p>
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