Is breast cancer linked to night shifts? 乳腺癌与上夜班有关系吗？
<p><span word="Is">Is</span> <span word="breast">breast</span> <span word="cancer">cancer</span> <span word="linked">linked</span> <span word="to">to</span> <span word="night">night</span> <span word="shifts">shifts</span>? 乳腺癌与上夜班有关系吗？</p><p><span word="Play">Play</span> <span word="audio">audio</span> <span word="file">file</span> 9 年前，隶属世界卫生组织（<span word="World">World</span> <span word="Health">Health</span> <span word="Organization">Organization</span>）的一组委员会说，一项对动物和人的研究显示，轮班工作制与乳腺癌可能有关联。但是最新的科学研究是否与该说法一致？长期上夜班的女性患乳腺癌的几率是否会增加？请听 报道。</p><p><span word="More">More</span> <span word="than">than</span> <span word="half">half</span> <span word="a">a</span> <span word="million">million</span> <span word="British">British</span> <span word="women">women</span>, <span word="about">about</span> 5% <span word="of">of</span> <span word="the">the</span> <span word="female">female</span> <span word="labour">labour</span> <span word="force">force</span>, <span word="work">work</span> <span word="at">at</span> <span word="night">night</span>. <span word="Each">Each</span> <span word="year">year</span>, <span word="more">more</span> <span word="than">than</span> 50,000 <span word="women">women</span> <span word="are">are</span> <span word="diagnosed">diagnosed</span> <span word="with">with</span> <span word="breast">breast</span> <span word="cancer">cancer</span> <span word="in">in</span> <span word="the">the</span> <span word="UK">UK</span>, <span word="and">and</span> <span word="around">around</span> 11,000 <span word="die">die</span> <span word="from">from</span> <span word="the">the</span> <span word="disease">disease</span>.</p><p><span word="A">A</span> <span word="number">number</span> <span word="of">of</span> <span word="studies">studies</span> <span word="have">have</span> <span word="concluded">concluded</span> <span word="that">that</span> <span word="working">working</span> <span word="at">at</span> <span word="night">night</span> <span word="is">is</span> <span word="probably">probably</span> <span word="linked">linked</span> <span word="with">with</span> <span word="breast">breast</span> <span word="cancer">cancer</span>, <span word="with">with</span> <span word="the">the</span> <span word="risk">risk</span> <span word="increasing">increasing</span> <span word="the">the</span> <span word="longer">longer</span> <span word="the">the</span> <span word="night">night</span> <span word="shifts">shifts</span> <span word="continue">continue</span>. <span word="In">In</span> 2007, <span word="the">the</span> <span word="World">World</span> <span word="Health">Health</span> <span word="Organisation">Organisation</span> <span word="Committee">Committee</span> <span word="suggested">suggested</span> <span word="hormone">hormone</span> <span word="production">production</span> <span word="might">might</span> <span word="be">be</span> <span word="affected">affected</span> <span word="by">by</span> <span word="disruption">disruption</span> <span word="of">of</span> <span word="the">the</span> <span word="body">body</span> <span word="clock">clock</span>.</p><p><span word="However">However</span>, <span word="the">the</span> <span word="latest">latest</span> <span word="study">study</span> <span word="which">which</span> <span word="reviewed">reviewed</span> <span word="data">data</span> <span word="from">from</span> 1.4 <span word="million">million</span> <span word="women">women</span> <span word="and">and</span> <span word="included">included</span> <span word="ten">ten</span> <span word="different">different</span> <span word="studies">studies</span> <span word="and">and</span> <span word="several">several</span> <span word="countries">countries</span>, <span word="concluded">concluded</span> <span word="that">that</span> <span word="there">there</span> <span word="was">was</span> <span word="no">no</span> <span word="link">link</span>. <span word="Its">Its</span> <span word="lead">lead</span> <span word="author">author</span> <span word="Dr">Dr</span> <span word="Ruth">Ruth</span> <span word="Travis">Travis</span> <span word="of">of</span> <span word="Oxford">Oxford</span> <span word="University">University</span> <span word="said">said</span> <span word="the">the</span> <span word="incidents">incidents</span> <span word="of">of</span> <span word="breast">breast</span> <span word="cancer">cancer</span> <span word="was">was</span> <span word="the">the</span> <span word="same">same</span> <span word="whether">whether</span> <span word="a">a</span> <span word="woman">woman</span> <span word="had">had</span> <span word="never">never</span> <span word="worked">worked</span> <span word="at">at</span> <span word="night">night</span> <span word="or">or</span> <span word="completed">completed</span> 20 <span word="or">or</span> <span word="more">more</span> <span word="years">years</span> <span word="of">of</span> <span word="night">night</span> <span word="shifts">shifts</span>.</p><p>词汇表 <span word="labour">labour</span> <span word="force">force</span> 劳动力</p><p><span word="diagnosed">diagnosed</span> <span word="with">with</span> 被诊断为</p><p><span word="disease">disease</span> 疾病</p><p><span word="concluded">concluded</span> 得出结论</p><p><span word="linked">linked</span> 与……有关，有关联</p>
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