English 中文网 漫画网 爱新闻iNews 翻译论坛
中国网站品牌栏目(频道)
当前位置: Language Tips> 阅读天地> 双语新闻

研究:长期缺觉没法补
Don't bank on weekend to make up for sleep loss

[ 2010-01-15 09:08]     字号 [] [] []  
免费订阅30天China Daily双语新闻手机报:移动用户编辑短信CD至106580009009

研究:长期缺觉没法补

Sleeping in on Saturday after a few weeks of too little shuteye may feel refreshing, but it can give a false sense of security. New research shows chronic sleep loss cannot be cured that easily.

Sleeping in on Saturday after a few weeks of too little shuteye may feel refreshing, but it can give a false sense of security.

New research shows chronic sleep loss cannot be cured that easily. Scientists teased apart the effects of short- and long-term sleep loss and found that the chronically sleep-deprived may function normally soon after waking up, but experience steadily slower reaction times as the day wears on, even if they had tried to catch up the previous night.

It is work with important safety implications in an increasingly busy society, not just for shift-workers but for the roughly one in six Americans who regularly get six hours or less of sleep a night.

"We know that staying awake 24 hours in a row impairs performance to a level comparable to a blood-alcohol content beyond the legal limit to drive," said lead researcher Dr. Daniel Cohen of Boston's Brigham and Women's Hospital.

But when the chronically sleep-deprived pull an all-nighter, "the deterioration is increased tenfold," Cohen said.

The National Institutes of Health says adults need seven hours to nine hours of sleep for good health. Regularly getting too little increases the risk of health problems, including memory impairment and a weakened immune system. More immediately, too little sleep affects reaction times; sleepiness is to blame for car crashes and other accidents.

The new work shows how two different sleep drives impact the brain, one during the normal waking hours and the other over days and weeks of sleep loss.

It has critically important ramifications for anyone who works "crazy hours" and thinks they are performing fine with a few hours of weeknight sleep, said Shelby Freedman Harris, behavioral sleep-medicine director at New York's Montefiore Medical Center, who was not involved with the new research.

"Don't think you can just bank up your sleep on the weekend, because it doesn't work that way," Harris warned.

(Read by Renee Haines. Renee Haines is a multimedia journalist at the China Daily Web site.)

点击查看更多双语新闻



(Agencies)

在一连几个星期睡眠不足的情况下,到了周六睡个懒觉可能会让你感到神清气爽,但这会给你一种错误的安全感。

最新研究表明,长期缺觉没那么容易补回来。科学家分别对短期和长期缺觉的影响进行了研究,发现长期缺觉的人在醒来后可能可以很快进入正常状态,但在当天之后,反应速度会逐渐变慢,即便他们试图补回前一夜缺的睡眠。

在如今日益繁忙的社会,这项研究具有重要的安全警示意义,不仅对于那些需要倒班的人来说如此,对于那些每晚睡眠不足六小时的六分之一美国人来说也一样。

该研究负责人、波士顿布莱根女子医院的丹尼尔•科恩博士说:“我们知道,一连24小时不睡觉会影响你做各种事情的表现,这种影响相当于在饮酒过量时驾车。”

但如果长期缺觉的人彻夜不眠,“这种影响会增加十倍”。

美国国立卫生研究院说,成年人每天需要七至九个小时的睡眠才可保持身体健康。长期缺觉会增加患病风险,包括对记忆力的损害和免疫能力下降。更直接的影响是,睡眠不足会影响反应速度,开车时打瞌睡是导致撞车等事故的主要原因。

这项新的研究揭示了两种不同的睡眠驱力是如何对大脑产生影响的,一种是在正常清醒的状态下,另一种是在连续几天或几个星期缺觉的情况下。

纽约蒙特费尔医疗中心的行为睡眠医学主任谢尔比•弗里德曼•哈里斯说,这项研究对于那些玩命工作,却还认为每天睡几个小时也能应付的人来说具有极其重要的警示作用。哈里斯没有参与这项新研究。

哈里斯警告说:“不要以为周末睡个懒觉就能把睡眠补回来,因为根本不是那么回事。”

相关阅读

美睡眠调查 西弗吉尼亚州最缺觉

研究:睡眠充足有利于保持好身材

要想睡眠好,夫妻最好分床睡

研究:睡眠充足的学生成绩更优异

美国:三分之一员工上班打瞌睡

研究:睡前使用手机影响睡眠

健康讲堂:睡眠不足的人易发心脏病

(中国日报网英语点津 陈丹妮 编辑蔡姗姗)

Vocabulary:

sleep in: to sleep until after the time you usually get up in the morning 迟起;睡过头;睡懒觉

shuteye: informal term for sleep 睡眠

tease apart: to pull something gently apart into separate pieces 梳理

shift-worker: 轮班工作者

all-nighter: a time when you stay awake all night studying 通宵学习;开通宵夜车

ramification: one of the large number of complicated and unexpected results that follow an action or a decision (众多复杂而又难以预料的)结果,后果

weeknight: any night except those on Saturday and Sunday 周日夜晚(除星期六和星期日以外的任何夜晚)

bank up: to heap or mound up something to guard against something 堆积

 
中国日报网英语点津版权说明:凡注明来源为“中国日报网英语点津:XXX(署名)”的原创作品,除与中国日报网签署英语点津内容授权协议的网站外,其他任何网站或单位未经允许不得非法盗链、转载和使用,违者必究。如需使用,请与010-84883631联系;凡本网注明“来源:XXX(非英语点津)”的作品,均转载自其它媒体,目的在于传播更多信息,其他媒体如需转载,请与稿件来源方联系,如产生任何问题与本网无关;本网所发布的歌曲、电影片段,版权归原作者所有,仅供学习与研究,如果侵权,请提供版权证明,以便尽快删除。
 

关注和订阅

人气排行

翻译服务

中国日报网翻译工作室

我们提供:媒体、文化、财经法律等专业领域的中英互译服务
电话:010-84883468
邮件:translate@chinadaily.com.cn