首页
登录
职称英语
For millions of years before the appearance of the electric light, shift wor
For millions of years before the appearance of the electric light, shift wor
游客
2023-09-12
32
管理
问题
For millions of years before the appearance of the electric light, shift work, all night cable TV and the Internet, Earth’s creatures evolved on a planet with predictable and reassuring 24-hour rhythms. Our biological clocks are set for this daily cycle. Simply put, our bodies want to sleep at night and be awake during the day. Most women and men need between eight and eight and a half hours of sleep a night to function properly throughout their lives. (Contrary to popular belief, humans don’t need less sleep as they age.)
But on average, Americans sleep only about seven and a half hours per night, a marked drop from the nine hours day averaged in 1910. What’s worse, nearly one third of all Americans get less than six hours of sleep on a typical work night. For most people, that’s not nearly enough.
Finding ways to get more and better sleep can be a challenge. Scientists have identified more than 80 different sleep disorders. Some sleeping disorders are generic. But many problems are caused by staying up late and sleeping in, by traveling frequently between time zones or by working nights. Dr. James. F. Jones at National Jewish Medical and Research Center in Denver says that sleep disorders are often diagnosed as other discomforts. About one third of the patients who referred to him with possible chronic fatigue syndrome actually have treatable sleep disorders. "Before we do anything else, we look at their sleep," Jones says.
Sleep experts say that most people would benefit from a good look at their sleep patterns, "My motto (座右铭) is ’sleep defensively’," says Mary Carskadon of Brown University. She says people need to carve out sufficient time to sleep, even if it means giving up other things. Sleep routines—like going to bed and getting up at the same time every day—are important. Pre-bedtime activities also make a difference. As with Elsneer, who used to suffer from sleeplessness, a few lifestyle changes—avoiding stimulants and late meals, no exercising before bedtime, but relaxing with a hot bath—yield better sleep. [br] For our bodies to function properly, we should ______.
选项
A、sleep for at least eight hours per night
B、believe that we need less sleep as we age
C、adjust our activities to new environment
D、be able to predict the rhythms of our biological clocks
答案
A
解析
事实细节题。根据第一段倒数第二句话可知A项正确;B项是错误的说法; C、D两项文中未提到。
转载请注明原文地址:https://tihaiku.com/zcyy/3007852.html
相关试题推荐
Hadtheyboughtthehousebeforethewar,______(他们现在可以以于原来十倍的的价格将其出售).theycou
SinceIboughtacomputerlastmonth,anewworldhasopenedupbeforeme,
SinceIboughtacomputerlastmonth,anewworldhasopenedupbeforeme,
SinceIboughtacomputerlastmonth,anewworldhasopenedupbeforeme,
SinceIboughtacomputerlastmonth,anewworldhasopenedupbeforeme,
SinceIboughtacomputerlastmonth,anewworldhasopenedupbeforeme,
InNovember1965,NewYorkwasblackedoutbyanelectricityfailure.The【B
InNovember1965,NewYorkwasblackedoutbyanelectricityfailure.The【B
InNovember1965,NewYorkwasblackedoutbyanelectricityfailure.The【B
InNovember1965,NewYorkwasblackedoutbyanelectricityfailure.The【B
随机试题
______(瘫痪在床多年).helostallhopeofrecovery.Havingbeenlaidupwithparalysis
[originaltext]W:IsthereamancalledBeninyourdepartment?M:I’msorry.I’mn
Baby-NamingTrends[A]Overthelastfiftyyears,Americanparentshaver
典型慢性肾功能不全时的水电解质紊乱是A、代谢性酸中毒、低血钙、高血磷、高血钾
关于外币股权投资基金,表述错误的是()。A.外币股权投资基金既可以在中国境内以
A.香附B.醋香附C.四制香附D.酒香附E.香附炭具有疏肝止痛,并能消积化滞的是
中国临床检验标准委员会推荐尿比密测定的参考方法是( )。A.化学试带法 B.
呋喃唑酮是A.硝基呋喃类抗菌药 B.磺胺类抗菌药 C.异喹啉类抗菌药 D.
基金份额持有人是()。 A.基金投资者B.基金的出资人 C.基金资产
甘松除行气止痛外,又能A.温肾散寒 B.开郁醒脾 C.温肾纳气 D.燥湿化
最新回复
(
0
)