健康生活:你的运动超量了吗
<p><span word="Over">Over</span> <span word="the">the</span> <span word="last">last</span> <span word="few">few</span> <span word="months">months</span>, <span word="during">during</span> <span word="the">the</span> <span word="endurance">endurance</span>-<span word="athletics">athletics</span> <span word="offseason">offseason</span>, <span word="something">something</span> <span word="extraordinary">extraordinary</span> <span word="happened">happened</span>: <span word="The">The</span> <span word="line">line</span> <span word="began">began</span> <span word="to">to</span> <span word="blur">blur</span> <span word="between">between</span> <span word="the">the</span> <span word="health">health</span> <span word="effects">effects</span> <span word="of">of</span> <span word="running">running</span> <span word="marathons">marathons</span> <span word="and">and</span> <span word="eating">eating</span> <span word="cheeseburgers">cheeseburgers</span>.</p><p>过去几个月耐力赛事的淡季中，发生了一件很不寻常的事情：跑马拉松和吃芝士汉堡，这两件事对人体健康的影响的区别开始变得模糊起来。</p><p>'<span word="I">I</span>'<span word="m">m</span> <span word="not">not</span> <span word="worried">worried</span>, ' <span word="says">says</span> <span word="veteran">veteran</span> <span word="running">running</span> <span word="coach">coach</span> <span word="Mark">Mark</span> <span word="Sullivan">Sullivan</span>, <span word="who">who</span> <span word="has">has</span> <span word="run">run</span> <span word="more">more</span> <span word="than">than</span> 150 <span word="marathons">marathons</span>, <span word="joking">joking</span> <span word="that">that</span> '<span word="there">there</span> <span word="are">are</span> <span word="guys">guys</span> <span word="who">who</span> <span word="live">live</span> <span word="to">to</span> <span word="be">be</span> 100 <span word="smoking">smoking</span> <span word="cigarettes">cigarettes</span> <span word="and">and</span> <span word="eating">eating</span> <span word="cheeseburgers">cheeseburgers</span>.'</p><p>参加过150余场马拉松赛的资深跑步教练马克??苏利凡(<span word="Mark">Mark</span> <span word="Sullivan">Sullivan</span>)说：“我一点儿也不担心。”他还开玩笑称：“有人又抽烟又吃芝士汉堡还能活到100岁呢。”</p><p><span word="Endurance">Endurance</span> <span word="athletes">athletes</span> <span word="have">have</span> <span word="long">long</span> <span word="enjoyed">enjoyed</span> <span word="a">a</span> <span word="made">made</span>-<span word="of">of</span>-<span word="iron">iron</span> <span word="image">image</span>. <span word="But">But</span> <span word="amid">amid</span> <span word="mounting">mounting</span> <span word="evidence">evidence</span> <span word="that">that</span> <span word="extraordinary">extraordinary</span> <span word="doses">doses</span> <span word="of">of</span> <span word="exercise">exercise</span> <span word="may">may</span> <span word="diminish">diminish</span> <span word="the">the</span> <span word="benefits">benefits</span> <span word="of">of</span> <span word="modest">modest</span> <span word="amounts">amounts</span>, <span word="that">that</span> <span word="image">image</span> <span word="is">is</span> <span word="being">being</span> <span word="smudged">smudged</span>. <span word="That">That</span> <span word="extra">extra</span> <span word="six">six</span> <span word="years">years</span> <span word="of">of</span> <span word="longevity">longevity</span> <span word="running">running</span> <span word="has">has</span> <span word="been">been</span> <span word="shown">shown</span> <span word="to">to</span> <span word="confer">confer</span>? <span word="That">That</span> <span word="benefit">benefit</span> <span word="may">may</span> <span word="disappear">disappear</span> <span word="beyond">beyond</span> 30 <span word="miles">miles</span> <span word="of">of</span> <span word="running">running</span> <span word="a">a</span> <span word="week">week</span>, <span word="suggests">suggests</span> <span word="recent">recent</span> <span word="research">research</span>.</p><p>长期以来，耐力运动员在世人心目中都是铁人的形象。但随着越来越多的证据表明，运动量过大的话，可能会减少适量运动所带来的益处。这给运动员的铁人形象蒙上了阴影。不是说跑步能让人多活六年吗？新近的研究表明，一周跑步超过30英里（约合48公里），这一好处可能就会消失殆尽。</p>
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