美食的诱惑有多难抗拒?
<p><span word="You">You</span> <span word="might">might</span> <span word="have">have</span> <span word="thought">thought</span> <span word="resisting">resisting</span> <span word="that">that</span> <span word="piece">piece</span> <span word="of">of</span> <span word="chocolate">chocolate</span> <span word="cake">cake</span> <span word="or">or</span> <span word="extra">extra</span> <span word="biscuit">biscuit</span> <span word="was">was</span> <span word="simply">simply</span> <span word="a">a</span> <span word="matter">matter</span> <span word="of">of</span> <span word="exerting">exerting</span> <span word="a">a</span> <span word="little">little</span> <span word="will">will</span> <span word="power">power</span>. <span word="But">But</span> <span word="for">for</span> <span word="some">some</span> <span word="of">of</span> <span word="us">us</span> <span word="it">it</span>’<span word="s">s</span> <span word="much">much</span> <span word="more">more</span> <span word="difficult">difficult</span> <span word="than">than</span> <span word="that">that</span> – <span word="because">because</span> <span word="of">of</span> <span word="the">the</span> <span word="way">way</span> <span word="our">our</span> <span word="brains">brains</span> <span word="are">are</span> <span word="wired">wired</span>.</p><p>你也许会认为，抵住一块巧克力蛋糕和一块额外的饼干的诱惑，仅仅是发挥一点意志力的问题。但是对我们有些人来说，可没有这么简单，这是因为我们的大脑构造方式不同。</p><p><span word="Scientists">Scientists</span> <span word="have">have</span> <span word="found">found</span> <span word="that">that</span> <span word="a">a</span> <span word="key">key</span> <span word="part">part</span> <span word="of">of</span> <span word="the">the</span> <span word="brain">brain</span> <span word="which">which</span> <span word="stops">stops</span> <span word="the">the</span> <span word="body">body</span> <span word="from">from</span> <span word="acting">acting</span> <span word="on">on</span> <span word="impulse">impulse</span> – <span word="and">and</span> <span word="gorging">gorging</span> – <span word="does">does</span> <span word="not">not</span> <span word="function">function</span> <span word="as">as</span> <span word="well">well</span> <span word="in">in</span> <span word="those">those</span> <span word="who">who</span> <span word="are">are</span> <span word="overweight">overweight</span> <span word="or">or</span> <span word="obese">obese</span>.</p><p>科学家们近日发现，通常人大脑中阻止身体冲动行事和狼吞虎咽的关键组成部分，却没有办法在超重者或肥胖者的大脑内发生作用。</p><p><span word="A">A</span> <span word="study">study</span> <span word="by">by</span> <span word="scientists">scientists</span> <span word="from">from</span> <span word="Yale">Yale</span> <span word="University">University</span> <span word="has">has</span> <span word="shown">shown</span> <span word="that">that</span> <span word="falling">falling</span> <span word="glucose">glucose</span> <span word="levels">levels</span> <span word="lead">lead</span> <span word="to">to</span> <span word="a">a</span> <span word="loss">loss</span> <span word="of">of</span> <span word="self">self</span>-<span word="control">control</span> <span word="in">in</span> <span word="the">the</span> <span word="brain">brain</span> <span word="which">which</span> <span word="subsequently">subsequently</span> <span word="lead">lead</span> <span word="to">to</span> <span word="parts">parts</span> <span word="of">of</span> <span word="the">the</span> <span word="brain">brain</span> <span word="craving">craving</span> <span word="high">high</span>-<span word="calorie">calorie</span> <span word="food">food</span> <span word="such">such</span> <span word="as">as</span> <span word="cakes">cakes</span>, <span word="biscuits">biscuits</span> <span word="or">or</span> <span word="crisps">crisps</span>.</p><p>耶鲁大学的科学家们通过研究发现，葡萄糖水平降低会导致大脑自我控制力丧失，这将会造成大脑某些部分对蛋糕、饼干和薯片等高卡路里食物的需求。</p><p><span word="In">In</span> <span word="obese">obese</span> <span word="people">people</span> <span word="the">the</span> <span word="effect">effect</span> <span word="may">may</span> <span word="be">be</span> <span word="even">even</span> <span word="more">more</span> <span word="pronounced">pronounced</span>, <span word="so">so</span> <span word="they">they</span> <span word="are">are</span> <span word="driven">driven</span> <span word="to">to</span> <span word="eat">eat</span> <span word="by">by</span> <span word="the">the</span> <span word="slightest">slightest</span> <span word="drop">drop</span> <span word="in">in</span> <span word="glucose">glucose</span>.</p><p>这种影响在肥胖人群身上表现得更为显著，一旦他们的葡萄糖出现轻微降低，他们就会因此开始吃东西。</p>
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