闹钟响了 再贪睡一会有益身体健康吗
<p><span word="Lots">Lots</span> <span word="of">of</span> <span word="people">people</span> <span word="rely">rely</span> <span word="on">on</span> <span word="the">the</span> <span word="beep">beep</span>-<span word="beep">beep</span>-<span word="beep">beep</span> <span word="of">of</span> <span word="an">an</span> <span word="alarm">alarm</span> <span word="clock">clock</span>. <span word="And">And</span> <span word="while">while</span> <span word="some">some</span> <span word="start">start</span> <span word="the">the</span> <span word="morning">morning</span> <span word="with">with</span> <span word="a">a</span> <span word="cheerful">cheerful</span> <span word="press">press</span> <span word="of">of</span> <span word="the">the</span> <span word="off">off</span> <span word="button">button</span> <span word="and">and</span> <span word="a">a</span> <span word="catlike">catlike</span> <span word="stretch">stretch</span>, <span word="others">others</span> <span word="wake">wake</span> <span word="after">after</span> <span word="a">a</span> <span word="whack">whack</span> <span word="of">of</span> <span word="the">the</span> <span word="snooze">snooze</span> <span word="button">button</span> <span word="and">and</span> <span word="another">another</span> 10 <span word="minutes">minutes</span> <span word="of">of</span> <span word="rest">rest</span>. <span word="But">But</span> <span word="do">do</span> <span word="those">those</span> <span word="extra">extra</span> <span word="few">few</span> <span word="minutes">minutes</span> <span word="help">help</span>? <span word="One">One</span> <span word="expert">expert</span>, <span word="David">David</span> <span word="Dinges">Dinges</span>, <span word="chief">chief</span> <span word="of">of</span> <span word="the">the</span> <span word="Division">Division</span> <span word="of">of</span> <span word="Sleep">Sleep</span> <span word="and">and</span> <span word="Chronobiology">Chronobiology</span> <span word="in">in</span> <span word="the">the</span> <span word="Department">Department</span> <span word="of">of</span> <span word="Psychiatry">Psychiatry</span> <span word="at">at</span> <span word="the">the</span> <span word="University">University</span> <span word="of">of</span> <span word="Pennsylvania">Pennsylvania</span>'<span word="s">s</span> <span word="Perelman">Perelman</span> <span word="School">School</span> <span word="of">of</span> <span word="Medicine">Medicine</span>, <span word="awakens">awakens</span> <span word="the">the</span> <span word="controversy">controversy</span>.</p><p>很多人起床都要依赖闹钟铃响的哔哔声。虽然有些人的早晨是从乐呵呵地按下“关闭”键然后伸个懒腰开始的，另一些人则是猛按“小睡”键、接着再躺10分钟后才醒来的。但多睡这几分钟真的管用吗？宾夕法尼亚大学佩雷尔曼医学院(<span word="University">University</span> <span word="of">of</span> <span word="Pennsylvania">Pennsylvania</span>'<span word="s">s</span> <span word="Perelman">Perelman</span> <span word="School">School</span> <span word="of">of</span> <span word="Medicine">Medicine</span>)精神病学部睡眠与生物钟学分部(<span word="Division">Division</span> <span word="of">of</span> <span word="Sleep">Sleep</span> <span word="and">and</span> <span word="Chronobiology">Chronobiology</span> <span word="in">in</span> <span word="the">the</span> <span word="Department">Department</span> <span word="of">of</span> <span word="Psychiatry">Psychiatry</span>)主管、睡眠专家戴维·丁格斯(<span word="David">David</span> <span word="Dinges">Dinges</span>)引发了人们对这个话题的争论。</p><p><span word="Efficient">Efficient</span> <span word="sleep">sleep</span></p><p>有效睡眠</p><p><span word="Most">Most</span> <span word="sleep">sleep</span> <span word="experts">experts</span> <span word="agree">agree</span> <span word="that">that</span> <span word="seven">seven</span> <span word="to">to</span> <span word="eight">eight</span> <span word="hours">hours</span> <span word="of">of</span> <span word="shut">shut</span>-<span word="eye">eye</span> <span word="per">per</span> <span word="night">night</span> <span word="is">is</span> <span word="optimal">optimal</span> <span word="for">for</span> <span word="adults">adults</span>. <span word="In">In</span> <span word="a">a</span> 2007 <span word="paper">paper</span> <span word="based">based</span> <span word="on">on</span> <span word="the">the</span> <span word="annual">annual</span> <span word="American">American</span> <span word="Time">Time</span> <span word="Use">Use</span> <span word="Survey">Survey</span>, <span word="Dr">Dr</span>. <span word="Dinges">Dinges</span> <span word="found">found</span> 32.6% <span word="of">of</span> <span word="Americans">Americans</span> <span word="self">self</span>-<span word="reported">reported</span> <span word="that">that</span> <span word="they">they</span> <span word="got">got</span> <span word="less">less</span> <span word="than">than</span> 7.5 <span word="hours">hours</span> <span word="by">by</span> <span word="going">going</span> <span word="to">to</span> <span word="bed">bed</span> <span word="late">late</span>, <span word="then">then</span> <span word="relied">relied</span> <span word="on">on</span> <span word="alarm">alarm</span> <span word="clocks">clocks</span> <span word="to">to</span> <span word="wake">wake</span> <span word="up">up</span>. <span word="Surprisingly">Surprisingly</span>, <span word="the">the</span> <span word="result">result</span> <span word="isn">isn</span>'<span word="t">t</span> <span word="a">a</span> <span word="population">population</span> <span word="of">of</span> <span word="groggy">groggy</span> <span word="people">people</span>, <span word="but">but</span> <span word="one">one</span> <span word="that">that</span> <span word="is">is</span> <span word="getting">getting</span> <span word="more">more</span> <span word="efficient">efficient</span> <span word="sleep">sleep</span>.</p>
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