生活研究:哪种人是蚊子的最爱?
<p><span word="It">It</span> <span word="is">is</span> <span word="peak">peak</span> <span word="mosquito">mosquito</span> <span word="season">season</span>, <span word="and">and</span> <span word="while">while</span> <span word="some">some</span> <span word="lucky">lucky</span> <span word="outdoor">outdoor</span> <span word="venturers">venturers</span> <span word="seem">seem</span> <span word="unperturbed">unperturbed</span> <span word="by">by</span> <span word="the">the</span> <span word="tiny">tiny</span> <span word="insects">insects</span>, <span word="others">others</span> <span word="appear">appear</span> <span word="to">to</span> <span word="be">be</span> <span word="relentlessly">relentlessly</span> <span word="assaulted">assaulted</span>. <span word="Scientists">Scientists</span> <span word="are">are</span> <span word="trying">trying</span> <span word="to">to</span> <span word="understand">understand</span> <span word="what">what</span> <span word="makes">makes</span> <span word="certain">certain</span> <span word="humans">humans</span> <span word="more">more</span> <span word="attractive">attractive</span> <span word="to">to</span> <span word="the">the</span> <span word="bugs">bugs</span>. <span word="One">One</span> <span word="expert">expert</span>, <span word="molecular">molecular</span> <span word="vector">vector</span> <span word="biologist">biologist</span> <span word="L">L</span>.<span word="J">J</span>. <span word="Zwiebel">Zwiebel</span>, <span word="a">a</span> <span word="professor">professor</span> <span word="of">of</span> <span word="biological">biological</span> <span word="sciences">sciences</span> <span word="at">at</span> <span word="Vanderbilt">Vanderbilt</span> <span word="University">University</span>, <span word="weighs">weighs</span> <span word="in">in</span>.</p><p>眼下正是蚊子活动的高峰期，有些在室外活动的幸运儿好像并不受这种小小昆虫的侵扰，而另一些人则似乎不断遭到它们的侵袭。科学家们就什么原因导致某些人更吸引这些恼人的东西进行了探索。其中一名专家──范德堡大学(<span word="Vanderbilt">Vanderbilt</span> <span word="University">University</span>)生物学教授、分子载体生物学家<span word="L">L</span>.<span word="J">J</span>.茨维伯尔(<span word="L">L</span>. <span word="J">J</span>. <span word="Zwiebel">Zwiebel</span>)也加入了讨论。</p><p><span word="Sweet">Sweet</span> <span word="Smell">Smell</span> <span word="of">of</span> <span word="Success">Success</span></p><p>人体气味 <span word="Mosquitoes">Mosquitoes</span> <span word="find">find</span> <span word="their">their</span> <span word="mammalian">mammalian</span> <span word="prey">prey</span> <span word="through">through</span> <span word="sensing">sensing</span> <span word="the">the</span> <span word="heat">heat</span> <span word="and">and</span> <span word="carbon">carbon</span> <span word="dioxide">dioxide</span> <span word="mammals">mammals</span> <span word="emit">emit</span>. <span word="Pregnant">Pregnant</span> <span word="women">women</span> <span word="and">and</span> <span word="larger">larger</span> <span word="people">people</span> <span word="are">are</span> <span word="sometimes">sometimes</span> <span word="the">the</span> <span word="victim">victim</span> <span word="of">of</span> <span word="multiple">multiple</span> <span word="attacks">attacks</span>, <span word="since">since</span> <span word="they">they</span> <span word="exert">exert</span> <span word="more">more</span> <span word="energy">energy</span> <span word="than">than</span> <span word="the">the</span> <span word="average">average</span> <span word="person">person</span>.</p><p>蚊子通过感知哺乳动物释放出的热量和二氧化碳来寻找它们的“猎物”。有时候，怀孕女性与体型较大的人会遭到蚊子多次侵袭，因为他们会比普通人散发出更多能量。</p><p><span word="Mosquitoes">Mosquitoes</span> <span word="are">are</span> <span word="also">also</span> <span word="guided">guided</span> <span word="by">by</span> <span word="their">their</span> <span word="sense">sense</span> <span word="of">of</span> <span word="smell">smell</span>. '<span word="Despite">Despite</span> <span word="what">what</span> <span word="my">my</span> <span word="grandmother">grandmother</span> <span word="told">told</span> <span word="me">me</span>, <span word="I">I</span> <span word="don">don</span>'<span word="t">t</span> <span word="have">have</span> <span word="sweet">sweet</span> <span word="blood">blood</span>,' <span word="says">says</span> <span word="Dr">Dr</span>. <span word="Zwiebel">Zwiebel</span>, <span word="since">since</span> <span word="mosquitoes">mosquitoes</span> <span word="cannot">cannot</span> <span word="distinguish">distinguish</span> <span word="blood">blood</span> <span word="quality">quality</span>. '<span word="Mosquitoes">Mosquitoes</span> <span word="are">are</span> <span word="attracted">attracted</span> <span word="to">to</span> <span word="our">our</span> <span word="human">human</span> <span word="odor">odor</span>, <span word="and">and</span> <span word="that">that</span> <span word="is">is</span> <span word="largely">largely</span> <span word="a">a</span> <span word="consequence">consequence</span> <span word="of">of</span> <span word="the">the</span> <span word="bacteria">bacteria</span> <span word="on">on</span> <span word="our">our</span> <span word="skin">skin</span>,' <span word="says">says</span> <span word="Dr">Dr</span>. <span word="Zwiebel">Zwiebel</span>. <span word="The">The</span> '<span word="flora">flora</span> <span word="and">and</span> <span word="fauna">fauna</span> <span word="on">on</span> <span word="our">our</span> <span word="skin">skin</span>' <span word="also">also</span> <span word="smell">smell</span> <span word="appetizing">appetizing</span> <span word="to">to</span> <span word="mosquitoes">mosquitoes</span>, <span word="says">says</span> <span word="Dr">Dr</span>. <span word="Zweibel">Zweibel</span>, <span word="and">and</span> <span word="these">these</span> <span word="can">can</span> <span word="increase">increase</span> <span word="when">when</span> <span word="we">we</span> <span word="sweat">sweat</span> <span word="or">or</span> <span word="spend">spend</span> <span word="a">a</span> <span word="lot">lot</span> <span word="of">of</span> <span word="time">time</span> <span word="outdoors">outdoors</span>.</p>
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