为什么我们喜欢吃垃圾食品?
<p><span word="Many">Many</span> <span word="people">people</span> <span word="love">love</span> <span word="their">their</span> <span word="ice">ice</span> <span word="cream">cream</span>, <span word="pizza">pizza</span>, <span word="french">french</span> <span word="fries">fries</span>, <span word="candy">candy</span> <span word="despite">despite</span> <span word="knowing">knowing</span> <span word="that">that</span> <span word="these">these</span> <span word="are">are</span> <span word="unhealthy">unhealthy</span>. <span word="What">What</span> <span word="is">is</span> <span word="it">it</span> <span word="about">about</span> <span word="those">those</span> <span word="foods">foods</span> <span word="that">that</span> <span word="give">give</span> <span word="them">them</span> <span word="such">such</span> <span word="mass">mass</span> <span word="appeal">appeal</span>?</p><p>尽管很多人都知道像冰激凌、披萨、炸薯条、糖果等食品不健康，但是人们还是喜欢吃。为什么这类食品会有如此之大的吸引力呢？</p><p><span word="From">From</span> <span word="an">an</span> <span word="evolutionary">evolutionary</span> <span word="perspective">perspective</span>, <span word="it">it</span> <span word="feels">feels</span> <span word="reasonable">reasonable</span> <span word="to">to</span> <span word="be">be</span> <span word="confused">confused</span> <span word="about">about</span> <span word="why">why</span> <span word="humans">humans</span> <span word="have">have</span> <span word="strong">strong</span> <span word="desires">desires</span> <span word="for">for</span> <span word="as">as</span> <span word="unhealthy">unhealthy</span> <span word="of">of</span> <span word="a">a</span> <span word="behavior">behavior</span> <span word="as">as</span> <span word="eating">eating</span> <span word="high">high</span>-<span word="calorie">calorie</span> <span word="and">and</span> <span word="sugar">sugar</span>-<span word="heavy">heavy</span> <span word="foods">foods</span>.</p><p>从进化角度来讲，关于为啥人类对高热量高糖食物有着强烈的渴望人们表示很困惑，但似乎又情有可原。</p><p><span word="They">They</span>'<span word="re">re</span> <span word="bad">bad</span> <span word="for">for</span> <span word="hearts">hearts</span>, <span word="bad">bad</span> <span word="for">for</span> <span word="pancreases">pancreases</span>, <span word="bad">bad</span> <span word="for">for</span> <span word="physiques">physiques</span>. <span word="But">But</span> <span word="they">they</span> <span word="taste">taste</span> <span word="so">so</span> <span word="good">good</span>.</p><p>高糖高热量食物对心脏、胰腺、体型来说都不好，但它们味道很好。</p>
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