万能供血王——O型血更抗雾霾！
<p><span word="A">A</span> <span word="study">study</span> <span word="of">of</span> 14 <span word="years">years</span> <span word="of">of</span> <span word="patient">patient</span> <span word="data">data</span> <span word="from">from</span> <span word="the">the</span> <span word="Intermountain">Intermountain</span> <span word="Medical">Medical</span> <span word="Center">Center</span> <span word="Heart">Heart</span> <span word="Institute">Institute</span> <span word="in">in</span> <span word="Utah">Utah</span>, <span word="US">US</span>, <span word="found">found</span> <span word="that">that</span> <span word="the">the</span> <span word="risk">risk</span> <span word="of">of</span> <span word="a">a</span> <span word="heart">heart</span> <span word="attack">attack</span> <span word="or">or</span> <span word="chest">chest</span> <span word="pain">pain</span> <span word="doubled">doubled</span> <span word="for">for</span> <span word="people">people</span> <span word="of">of</span> <span word="type">type</span> <span word="A">A</span>, <span word="B">B</span>, <span word="or">or</span> <span word="AB">AB</span> <span word="blood">blood</span> <span word="when">when</span> <span word="pollution">pollution</span> <span word="hits">hits</span> <span word="high">high</span> <span word="levels">levels</span>.</p><p>美国犹他州山间医疗中心心脏科做了项实验，14年中通过收集病患数据，发现当污染严重时，<span word="A">A</span>型血、<span word="B">B</span>型血和<span word="AB">AB</span>型血的人患心脏病和胸痛的几率会翻倍。</p><p><span word="In">In</span> <span word="contrast">contrast</span> <span word="the">the</span> <span word="risk">risk</span> <span word="rose">rose</span> <span word="only">only</span> <span word="rose">rose</span> <span word="by">by</span> 40 <span word="per">per</span> <span word="cent">cent</span> <span word="for">for</span> <span word="those">those</span> <span word="with">with</span> <span word="type">type</span> <span word="O">O</span>.</p><p>然而，<span word="O">O</span>型血的人患病几率只增加了40%。</p>
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