揭秘:垃圾食品为何让你欲罢不能
<p><span word="Fatty">Fatty</span> <span word="junk">junk</span> <span word="food">food</span> <span word="destroys">destroys</span> <span word="the">the</span> <span word="brain">brain</span> <span word="cells">cells</span> <span word="that">that</span> <span word="control">control</span> <span word="weight">weight</span>, <span word="leading">leading</span> <span word="to">to</span> <span word="a">a</span> <span word="vicious">vicious</span> <span word="circle">circle</span> <span word="of">of</span> <span word="obesity">obesity</span>, <span word="scientists">scientists</span> <span word="have">have</span> <span word="revealed">revealed</span>. 科学家通过研究揭示了垃圾食品对健康的危害：因为热量超标的垃圾食品会破坏大脑中控制体重的细胞，并且有可能引发出现肥胖症。</p><p><span word="The">The</span> <span word="findings">findings</span> <span word="may">may</span> <span word="explain">explain</span> <span word="why">why</span> <span word="it">it</span> <span word="is">is</span> <span word="so">so</span> <span word="hard">hard</span> <span word="for">for</span> <span word="fat">fat</span> <span word="people">people</span> <span word="to">to</span> <span word="shift">shift</span> <span word="the">the</span> <span word="pounds">pounds</span>.</p><p>这项研究还解释了为何胖人想要甩掉几斤肥肉是如此的困难。</p><p><span word="Researchers">Researchers</span> <span word="fed">fed</span> <span word="rats">rats</span> <span word="what">what</span> <span word="they">they</span> <span word="described">described</span> <span word="as">as</span> <span word="a">a</span> '<span word="typical">typical</span> <span word="high">high</span>-<span word="fat">fat</span> <span word="American">American</span> <span word="diet">diet</span>' <span word="and">and</span> <span word="found">found</span> <span word="they">they</span> <span word="had">had</span> <span word="doubled">doubled</span> <span word="their">their</span> <span word="calorie">calorie</span> <span word="intake">intake</span> <span word="three">three</span> <span word="days">days</span> <span word="later">later</span>.</p><p>研究人员们用被称为是“非常典型的美式高热量食物”来饲养小白鼠，并且发现白鼠在三天之后的热量摄取量竟然增加了一倍。</p><p><span word="Further">Further</span> <span word="study">study</span> <span word="showed">showed</span> <span word="they">they</span> <span word="also">also</span> <span word="had">had</span> <span word="an">an</span> <span word="inflammation">inflammation</span> <span word="in">in</span> <span word="the">the</span> <span word="hypothalamus">hypothalamus</span>, <span word="the">the</span> <span word="part">part</span> <span word="of">of</span> <span word="the">the</span> <span word="brain">brain</span> <span word="containing">containing</span> <span word="neurons">neurons</span> <span word="that">that</span> <span word="control">control</span> <span word="body">body</span> <span word="weight">weight</span>.</p><p>进一步的研究表明，白鼠的大脑中的下丘脑出现了炎症的状况，这部分大脑的神经元具有控制体重的功能。</p><p><span word="This">This</span> <span word="inflammation">inflammation</span> <span word="stopped">stopped</span> <span word="a">a</span> <span word="few">few</span> <span word="days">days</span> <span word="later">later</span> <span word="but">but</span> <span word="then">then</span> <span word="recurred">recurred</span> <span word="after">after</span> <span word="four">four</span> <span word="weeks">weeks</span>.</p><p>这样的炎症在几天之后便消失了，不过在四周之后又再一次复发。</p><p><span word="Lead">Lead</span> <span word="researcher">researcher</span> <span word="Dr">Dr</span> <span word="Joshua">Joshua</span> <span word="Thaler">Thaler</span>, <span word="of">of</span> <span word="the">the</span> <span word="Diabetes">Diabetes</span> <span word="and">and</span> <span word="Obesity">Obesity</span> <span word="Centre">Centre</span> <span word="of">of</span> <span word="Excellence">Excellence</span> <span word="at">at</span> <span word="the">the</span> <span word="University">University</span> <span word="of">of</span> <span word="Washington">Washington</span> <span word="in">in</span> <span word="Seattle">Seattle</span>, <span word="said">said</span> <span word="scientists">scientists</span> <span word="also">also</span> <span word="detected">detected</span> <span word="a">a</span> <span word="healing">healing</span> <span word="response">response</span> <span word="to">to</span> <span word="brain">brain</span> <span word="injury">injury</span> <span word="called">called</span> <span word="gliosis">gliosis</span>.</p>
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