2015考研英语阅读外因遗传与压力
<p> <span word="Epigenetics">Epigenetics</span> <span word="and">and</span> <span word="stress">stress</span> <span word="Baby">Baby</span> <span word="blues">blues</span></p><p> 外因遗传与压力 新生儿蓝调曲</p><p> <span word="A">A</span> <span word="mother">mother</span> <span word="s">s</span> <span word="stress">stress</span> <span word="while">while</span> <span word="she">she</span> <span word="is">is</span> <span word="pregnant">pregnant</span> <span word="can">can</span> <span word="have">have</span> <span word="a">a</span> <span word="long">long</span>-<span word="lasting">lasting</span> <span word="effect">effect</span> <span word="on">on</span> <span word="her">her</span> <span word="children">children</span> <span word="sgenes">sgenes</span></p><p> 母亲孕期压力过大会对孩子的基因造成长期影响</p><p> <span word="RESEARCHERS">RESEARCHERS</span> <span word="have">have</span> <span word="known">known</span> <span word="for">for</span> <span word="years">years</span> <span word="that">that</span> <span word="children">children</span> <span word="whose">whose</span> <span word="mothers">mothers</span> <span word="were">were</span> <span word="chronically">chronically</span> <span word="stressedduring">stressedduring</span> <span word="pregnancyby">pregnancyby</span> <span word="famine">famine</span>, <span word="anxiety">anxiety</span>, <span word="the">the</span> <span word="death">death</span> <span word="of">of</span> <span word="a">a</span> <span word="relative">relative</span> <span word="or">or</span> <span word="marital">marital</span> <span word="discord">discord</span>, <span word="forinstanceshow">forinstanceshow</span> <span word="higher">higher</span>-<span word="than">than</span>-<span word="normal">normal</span> <span word="rates">rates</span> <span word="of">of</span> <span word="various">various</span> <span word="psychological">psychological</span> <span word="and">and</span> <span word="behaviouraldisorders">behaviouraldisorders</span> <span word="when">when</span> <span word="they">they</span> <span word="are">are</span> <span word="adults">adults</span>.</p><p> 研究人员多年前就发现，如果母亲在怀孕期间长期遭受因饥饿，焦虑，亲友死亡或婚姻不幸等引起的过大压力，她们的孩子成年后出现各种心理疾病和行为问题的几率会高于平均几率。</p><p> <span word="They">They</span> <span word="have">have</span> <span word="also">also</span> <span word="known">known</span> <span word="for">for</span> <span word="a">a</span> <span word="long">long</span> <span word="time">time</span> <span word="that">that</span> <span word="those">those</span> <span word="brought">brought</span> <span word="up">up</span> <span word="in">in</span> <span word="abusive">abusive</span> <span word="environments">environments</span> <span word="oftenturn">oftenturn</span> <span word="out">out</span> <span word="to">to</span> <span word="be">be</span> <span word="abusive">abusive</span> <span word="themselves">themselves</span>.</p><p> 研究人员也早知道，在受虐环境下成长起来的孩子长大后往往本身也有施虐倾向。</p><p> <span word="The">The</span> <span word="second">second</span> <span word="of">of</span> <span word="these">these</span> <span word="observations">observations</span> <span word="is">is</span> <span word="usually">usually</span> <span word="put">put</span> <span word="down">down</span> <span word="to">to</span> <span word="learning">learning</span>.<span word="The">The</span> <span word="reason">reason</span> <span word="for">for</span> <span word="the">the</span> <span word="first">first</span> <span word="hasremained">hasremained</span> <span word="unclear">unclear</span>.</p><p> 人们通常把后面的这个发现归咎于盲目效仿，而头一个发现的原因却仍旧模糊不清。</p><p> <span word="A">A</span> <span word="study">study</span> <span word="just">just</span> <span word="published">published</span> <span word="by">by</span> <span word="Axel">Axel</span> <span word="Meyer">Meyer</span>, <span word="Thomas">Thomas</span> <span word="Elbert">Elbert</span> <span word="and">and</span> <span word="their">their</span> <span word="colleagues">colleagues</span> <span word="at">at</span> <span word="the">the</span> <span word="University">University</span> <span word="ofKonstanz">ofKonstanz</span> <span word="in">in</span> <span word="Germany">Germany</span>, <span word="however">however</span>, <span word="points">points</span> <span word="to">to</span> <span word="a">a</span> <span word="phenomenon">phenomenon</span> <span word="called">called</span> <span word="epigenetics">epigenetics</span> <span word="as">as</span> <span word="the">the</span> <span word="likelyanswer">likelyanswer</span>.</p>
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