光照耳道可以预防患冬日抑郁？
<p><span word="Ear">Ear</span>'<span word="s">s</span> <span word="an">an</span> <span word="idea">idea</span>: <span word="The">The</span> <span word="effects">effects</span> <span word="of">of</span> <span word="seasonal">seasonal</span> <span word="affective">affective</span> <span word="disorder">disorder</span> <span word="could">could</span> <span word="be">be</span> <span word="combated">combated</span> <span word="by">by</span> <span word="channeling">channeling</span> <span word="light">light</span> <span word="to">to</span> <span word="the">the</span> <span word="brain">brain</span> <span word="down">down</span> <span word="the">the</span> <span word="ear">ear</span> <span word="duct">duct</span></p><p><span word="As">As</span> <span word="the">the</span> <span word="nights">nights</span> <span word="get">get</span> <span word="longer">longer</span>, <span word="those">those</span> <span word="who">who</span> <span word="suffer">suffer</span> <span word="from">from</span> <span word="the">the</span> <span word="winter">winter</span> <span word="blues">blues</span> <span word="will">will</span> <span word="be">be</span> <span word="planning">planning</span> <span word="ways">ways</span> <span word="to">to</span> <span word="escape">escape</span> <span word="to">to</span> <span word="the">the</span> <span word="sunshine">sunshine</span>.</p><p><span word="But">But</span> <span word="there">there</span> <span word="may">may</span> <span word="be">be</span> <span word="a">a</span> <span word="much">much</span> <span word="simpler">simpler</span> <span word="way">way</span> <span word="of">of</span> <span word="cheering">cheering</span> <span word="yourself">yourself</span> <span word="up">up</span>... <span word="simply">simply</span> <span word="shining">shining</span> <span word="a">a</span> <span word="bright">bright</span> <span word="light">light</span> <span word="into">into</span> <span word="your">your</span> <span word="ear">ear</span> <span word="canal">canal</span>.</p><p><span word="Up">Up</span> <span word="to">to</span> <span word="one">one</span> <span word="in">in</span> <span word="four">four</span> <span word="Britons">Britons</span> <span word="suffer">suffer</span> <span word="from">from</span> <span word="seasonal">seasonal</span> <span word="affective">affective</span> <span word="disorder">disorder</span>, <span word="with">with</span> <span word="seven">seven</span> <span word="percent">percent</span> <span word="of">of</span> <span word="the">the</span> <span word="population">population</span> <span word="having">having</span> <span word="full">full</span>-<span word="blownSAD">blownSAD</span>.</p><p><span word="It">It</span> <span word="is">is</span> <span word="caused">caused</span> <span word="by">by</span> <span word="the">the</span> <span word="brain">brain</span> <span word="not">not</span> <span word="receiving">receiving</span> <span word="enough">enough</span> <span word="daylight">daylight</span> <span word="which">which</span> <span word="is">is</span> <span word="needed">needed</span> <span word="to">to</span> <span word="trigger">trigger</span> <span word="serotonin">serotonin</span>, <span word="a">a</span> <span word="hormone">hormone</span> <span word="that">that</span> <span word="regulates">regulates</span> <span word="mood">mood</span>. <span word="Symptoms">Symptoms</span> <span word="range">range</span> <span word="from">from</span> <span word="mild">mild</span> <span word="lethargyto">lethargyto</span> <span word="depression">depression</span> <span word="and">and</span> <span word="insomnia">insomnia</span>, <span word="but">but</span> <span word="a">a</span> <span word="cure">cure</span> <span word="might">might</span> <span word="be">be</span> <span word="in">in</span> <span word="sight">sight</span>.</p><p><span word="Two">Two</span> <span word="clinical">clinical</span> <span word="trials">trials</span>, <span word="run">run</span> <span word="by">by</span> <span word="Valkee">Valkee</span> - <span word="who">who</span> <span word="make">make</span> <span word="a">a</span> <span word="device">device</span> <span word="that">that</span> <span word="can">can</span> <span word="shine">shine</span> <span word="light">light</span> <span word="into">into</span> <span word="your">your</span> <span word="ear">ear</span> - <span word="and">and</span> <span word="the">the</span> <span word="University">University</span> <span word="of">of</span> <span word="Oulu">Oulu</span> <span word="in">in</span> <span word="Finland">Finland</span>, <span word="have">have</span> <span word="found">found</span> <span word="that">that</span> <span word="carefully">carefully</span> <span word="targeted">targeted</span> <span word="light">light</span> <span word="can">can</span> <span word="help">help</span> <span word="prevent">prevent</span> <span word="the">the</span> <span word="condition">condition</span>.</p><p><span word="Juuso">Juuso</span> <span word="Nissil">Nissil</span> , <span word="Valkee">Valkee</span>'<span word="s">s</span> <span word="co">co</span>-<span word="founder">founder</span> <span word="and">and</span> <span word="chief">chief</span> <span word="scientist">scientist</span> <span word="said">said</span>: '<span word="We">We</span> <span word="presented">presented</span> <span word="earlier">earlier</span> <span word="that">that</span> <span word="the">the</span> <span word="human">human</span> <span word="brain">brain</span> <span word="is">is</span> <span word="sensitive">sensitive</span> <span word="to">to</span> <span word="light">light</span>.</p><p>'<span word="These">These</span> <span word="two">two</span> <span word="clinical">clinical</span> <span word="trials">trials</span> <span word="demonstrate">demonstrate</span> <span word="that">that</span> <span word="channeling">channeling</span> <span word="bright">bright</span> <span word="light">light</span> <span word="via">via</span> <span word="ear">ear</span> <span word="canal">canal</span> <span word="into">into</span> <span word="brain">brain</span>'<span word="s">s</span> <span word="photosensitiveareas">photosensitiveareas</span> <span word="effectively">effectively</span> <span word="prevents">prevents</span> <span word="and">and</span> <span word="treats">treats</span> <span word="seasonal">seasonal</span> <span word="affective">affective</span> <span word="disorder">disorder</span>.'</p><p><span word="The">The</span> <span word="University">University</span> <span word="of">of</span> <span word="Oulu">Oulu</span> <span word="reported">reported</span> <span word="that">that</span> <span word="in">in</span> <span word="their">their</span> <span word="first">first</span> <span word="study">study</span>, 92 <span word="percent">percent</span> <span word="of">of</span> <span word="the">the</span> <span word="patients">patients</span> <span word="with">with</span> <span word="seasonal">seasonal</span> <span word="affective">affective</span> <span word="disorder">disorder</span> <span word="achieved">achieved</span> <span word="full">full</span> <span word="remissionafter">remissionafter</span> <span word="a">a</span> <span word="month">month</span> <span word="of">of</span> <span word="daily">daily</span> <span word="eight">eight</span>-<span word="to">to</span>-12 <span word="minute">minute</span> <span word="doses">doses</span> <span word="of">of</span> <span word="light">light</span> <span word="from">from</span> <span word="the">the</span> <span word="Valkee">Valkee</span>.</p>
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