为什么人夜晚睡觉不会口渴
<p><span word="The">The</span> <span word="bodys">bodys</span> <span word="internal">internal</span> <span word="clock">clock</span> <span word="helps">helps</span> <span word="to">to</span> <span word="regulate">regulate</span> <span word="a">a</span> <span word="water">water</span>-<span word="storing">storing</span> <span word="hormone">hormone</span> <span word="so">so</span> <span word="that">that</span> <span word="nightly">nightly</span> <span word="dehydration">dehydration</span> <span word="or">or</span> <span word="trips">trips</span> <span word="to">to</span> <span word="the">the</span> <span word="toilet">toilet</span> <span word="are">are</span> <span word="not">not</span> <span word="the">the</span> <span word="norm">norm</span>, <span word="research">research</span> <span word="suggests">suggests</span>.</p><p><span word="In">In</span> <span word="an">an</span> <span word="article">article</span> <span word="published">published</span> <span word="in">in</span> <span word="Nature">Nature</span> <span word="Neuroscience">Neuroscience</span> <span word="today">today</span>, <span word="neurophysiologists">neurophysiologists</span> <span word="Eric">Eric</span> <span word="Trudel">Trudel</span> <span word="and">and</span> <span word="Charles">Charles</span> <span word="Bourque">Bourque</span> <span word="at">at</span> <span word="the">the</span> <span word="Research">Research</span> <span word="Institute">Institute</span> <span word="of">of</span> <span word="the">the</span> <span word="McGill">McGill</span> <span word="University">University</span> <span word="Health">Health</span> <span word="Centre">Centre</span> <span word="in">in</span> <span word="Montreal">Montreal</span>, <span word="Canada">Canada</span>, <span word="propose">propose</span> <span word="a">a</span> <span word="mechanism">mechanism</span> <span word="by">by</span> <span word="which">which</span> <span word="the">the</span> <span word="bodys">bodys</span> <span word="circadian">circadian</span> <span word="system">system</span>, <span word="or">or</span> <span word="internal">internal</span> <span word="clock">clock</span>, <span word="controls">controls</span> <span word="water">water</span> <span word="regulation">regulation</span>1. <span word="By">By</span> <span word="allowing">allowing</span> <span word="cells">cells</span> <span word="that">that</span> <span word="sense">sense</span> <span word="water">water</span> <span word="levels">levels</span> <span word="to">to</span> <span word="activate">activate</span> <span word="cells">cells</span> <span word="that">that</span> <span word="release">release</span> <span word="vasopressin">vasopressin</span>, <span word="a">a</span> <span word="hormone">hormone</span> <span word="that">that</span> <span word="instructs">instructs</span> <span word="the">the</span> <span word="body">body</span> <span word="to">to</span> <span word="store">store</span> <span word="water">water</span>, <span word="the">the</span> <span word="circadian">circadian</span> <span word="system">system</span> <span word="keeps">keeps</span> <span word="the">the</span> <span word="body">body</span> <span word="hydrated">hydrated</span> <span word="during">during</span> <span word="sleep">sleep</span>.</p><p><span word="Weve">Weve</span> <span word="known">known</span> <span word="for">for</span> <span word="years">years</span> <span word="that">that</span> <span word="theres">theres</span> <span word="a">a</span> <span word="rhythm">rhythm</span> <span word="of">of</span> <span word="vasopressin">vasopressin</span> <span word="that">that</span> <span word="gets">gets</span> <span word="high">high</span> <span word="when">when</span> <span word="youre">youre</span> <span word="sleeping">sleeping</span>. <span word="But">But</span> <span word="no">no</span> <span word="one">one</span> <span word="knew">knew</span> <span word="how">how</span> <span word="that">that</span> <span word="occurred">occurred</span>. <span word="And">And</span> <span word="this">this</span> <span word="group">group</span> <span word="identified">identified</span> <span word="a">a</span> <span word="very">very</span> <span word="concrete">concrete</span> <span word="physiological">physiological</span> <span word="mechanism">mechanism</span> <span word="of">of</span> <span word="how">how</span> <span word="it">it</span> <span word="occurs">occurs</span>, <span word="says">says</span> <span word="Christopher">Christopher</span> <span word="Colwell">Colwell</span>, <span word="a">a</span> <span word="neuroscientist">neuroscientist</span> <span word="who">who</span> <span word="studies">studies</span> <span word="sleep">sleep</span> <span word="and">and</span> <span word="circadian">circadian</span> <span word="rhythms">rhythms</span> <span word="at">at</span> <span word="the">the</span> <span word="David">David</span> <span word="Geffen">Geffen</span> <span word="School">School</span> <span word="of">of</span> <span word="Medicine">Medicine</span> <span word="at">at</span> <span word="the">the</span> <span word="University">University</span> <span word="of">of</span> <span word="California">California</span>, <span word="Los">Los</span> <span word="Angeles">Angeles</span>.</p><p><span word="The">The</span> <span word="body">body</span> <span word="regulates">regulates</span> <span word="its">its</span> <span word="water">water</span> <span word="content">content</span> <span word="mainly">mainly</span> <span word="by">by</span> <span word="balancing">balancing</span> <span word="water">water</span> <span word="intake">intake</span> <span word="through">through</span> <span word="thirst">thirst</span> <span word="with">with</span> <span word="water">water</span> <span word="loss">loss</span> <span word="through">through</span> <span word="urine">urine</span> <span word="production">production</span>. <span word="People">People</span> <span word="dont">dont</span> <span word="drink">drink</span> <span word="during">during</span> <span word="sleep">sleep</span>, <span word="so">so</span> <span word="the">the</span> <span word="body">body</span> <span word="has">has</span> <span word="to">to</span> <span word="minimize">minimize</span> <span word="water">water</span> <span word="loss">loss</span> <span word="to">to</span> <span word="remain">remain</span> <span word="sufficiently">sufficiently</span> <span word="hydrated">hydrated</span>. <span word="Scientists">Scientists</span> <span word="knew">knew</span> <span word="that">that</span> <span word="low">low</span> <span word="water">water</span> <span word="levels">levels</span> <span word="excite">excite</span> <span word="a">a</span> <span word="group">group</span> <span word="of">of</span> <span word="cells">cells</span> <span word="called">called</span> <span word="osmosensory">osmosensory</span> <span word="neurons">neurons</span>, <span word="which">which</span> <span word="direct">direct</span> <span word="another">another</span> <span word="set">set</span> <span word="of">of</span> <span word="neurons">neurons</span> <span word="to">to</span> <span word="release">release</span> <span word="vasopressin">vasopressin</span> <span word="into">into</span> <span word="the">the</span> <span word="bloodstream">bloodstream</span>. <span word="Vasopressin">Vasopressin</span> <span word="levels">levels</span> <span word="increase">increase</span> <span word="during">during</span> <span word="sleep">sleep</span>; <span word="clock">clock</span> <span word="neurons">neurons</span>, <span word="meanwhile">meanwhile</span>, <span word="get">get</span> <span word="quieter">quieter</span>.</p>
页:
[1]