可以巩固男女感情的化学反应
<p><span word="Researchers">Researchers</span> <span word="have">have</span> <span word="shed">shed</span> <span word="light">light</span> <span word="on">on</span> <span word="the">the</span> <span word="chemistry">chemistry</span> <span word="that">that</span> <span word="bonds">bonds</span> <span word="one">one</span> <span word="person">person</span> <span word="to">to</span> <span word="another">another</span> <span word="by">by</span> <span word="taking">taking</span> <span word="brain">brain</span> <span word="scans">scans</span> <span word="of">of</span> <span word="men">men</span> <span word="being">being</span> <span word="stroked">stroked</span> <span word="while">while</span> <span word="in">in</span> <span word="their">their</span> <span word="underpants">underpants</span>.</p><p>据英国《卫报》报道，研究者在对大脑进行扫描时发现，当男性穿着内裤被女性抚摸时，大脑皮层会分泌一种化学物质，增强双方关系。</p><p><span word="The">The</span> <span word="Finnish">Finnish</span> <span word="study">study</span> <span word="found">found</span> <span word="that">that</span> <span word="gentle">gentle</span> <span word="stroking">stroking</span> – <span word="which">which</span> <span word="was">was</span> <span word="not">not</span> <span word="in">in</span> <span word="sexually">sexually</span> <span word="arousing">arousing</span> <span word="areas">areas</span> – <span word="changed">changed</span> <span word="levels">levels</span> <span word="of">of</span> <span word="opioid">opioid</span> <span word="brain">brain</span> <span word="chemicals">chemicals</span> <span word="which">which</span> <span word="work">work</span> <span word="behind">behind</span> <span word="the">the</span> <span word="scenes">scenes</span> <span word="to">to</span> <span word="form">form</span> <span word="lasting">lasting</span> <span word="bonds">bonds</span> <span word="in">in</span> <span word="animals">animals</span>.</p><p>芬兰科学家研究发现普通程度的抚摸——不触及性敏感地带——将会改变大脑内阿片类化学物质（ <span word="opioid">opioid</span> <span word="brain">brain</span> <span word="chemicals">chemicals</span>）的分泌程度，这些分泌物会在动物体内起到促成长久联系的作用。</p><p><span word="The">The</span> <span word="findings">findings</span> <span word="suggest">suggest</span> <span word="that">that</span> <span word="opioids">opioids</span> <span word="might">might</span> <span word="be">be</span> <span word="the">the</span> <span word="critical">critical</span> <span word="chemicals">chemicals</span> <span word="that">that</span> <span word="enables">enables</span> <span word="human">human</span> <span word="brains">brains</span> <span word="to">to</span> <span word="distinguish">distinguish</span> <span word="between">between</span> <span word="strangers">strangers</span> <span word="and">and</span> <span word="people">people</span> <span word="who">who</span> <span word="are">are</span> <span word="closer">closer</span> <span word="to">to</span> <span word="us">us</span>, <span word="such">such</span> <span word="as">as</span> <span word="friends">friends</span>, <span word="families">families</span> <span word="and">and</span> <span word="lovers">lovers</span>.</p><p>研究表明，阿片类物质可能作为一种非常重要的化学物质，帮助人类大脑区别陌生人以及关系亲密的人，诸如朋友、家人和恋人。</p><p>"<span word="We">We</span> <span word="know">know</span> <span word="this">this</span> <span word="is">is</span> <span word="hugely">hugely</span> <span word="important">important</span> <span word="for">for</span> <span word="humans">humans</span> <span word="because">because</span> <span word="we">we</span> <span word="have">have</span> <span word="these">these</span> <span word="strong">strong</span>, <span word="lasting">lasting</span> <span word="bondings">bondings</span> <span word="with">with</span> <span word="friends">friends</span> <span word="and">and</span> <span word="relatives">relatives</span> <span word="and">and</span> <span word="so">so</span> <span word="on">on</span>. <span word="But">But</span> <span word="what">what</span> <span word="kind">kind</span> <span word="of">of</span> <span word="system">system</span> <span word="maintains">maintains</span> <span word="these">these</span> <span word="bonds">bonds</span>, <span word="and">and</span> <span word="makes">makes</span> <span word="them">them</span> <span word="last">last</span>?" <span word="said">said</span> <span word="Lauri">Lauri</span> <span word="Nummenmaa">Nummenmaa</span> <span word="who">who</span> <span word="studies">studies</span> <span word="the">the</span> <span word="neural">neural</span> <span word="circuitry">circuitry</span> <span word="of">of</span> <span word="emotions">emotions</span> <span word="at">at</span> <span word="Aalto">Aalto</span> <span word="University">University</span> <span word="in">in</span> <span word="Finland">Finland</span>.</p>
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