首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
For millions of years before the appearance of the electric light, shift work, all-night cable TV and the Internet, the Earth’s
For millions of years before the appearance of the electric light, shift work, all-night cable TV and the Internet, the Earth’s
admin
2005-06-26
51
问题
For millions of years before the appearance of the electric light, shift work, all-night cable TV and the Internet, the 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 they 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 genetic. 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 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 defensivejy’," 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 Elaner, who used to suffer from sleeplessness, a few lifestyle changes—avoiding stimulants and late meals, exercising hours before bedtime, relaxing with a hot bath—yield better sleep.
According to the author, many sleeping disorders are caused by______.
选项
A、other diseases
B、pre-bedtime exercises
C、improper sleep patterns
D、chronic fatigue syndrome
答案
C
解析
文章第四段中讲到:“Sleep experts say that most people would benefit from a good look at their sleep patterns.”睡眠专家说。通过认真观察自己的睡眠模式,大多数人可以受益。可见,作者认为,许多睡眠紊乱症是由不恰当的睡眠模式导致的。所以C项正确。第三段讲到“睡眠紊乱症常常被诊断为其他病症”,所以A项不对;文章最后一段最后一句话讲到,睡前锻炼等习惯对睡H民有很好的效果,所以B项不对;第三段中讲到“在被转介给琼斯医生的那些可能患有慢性疲劳综合征的病人中,约1/3的人实际上患的是可治疗的睡眠紊乱症”,这两者之间并不是因果的关系,所以D项也不对。因此本题应该选C。
转载请注明原文地址:https://kaotiyun.com/show/5Umi777K
0
在职申硕(同等学力)英语
相关试题推荐
Musiccomesinmanyforms;mostcountrieshaveastyleoftheirown.【C1】______theturnofthecenturywhenjazz(爵士乐)wasborn,Am
Anyonewhocanstudyabroadisfortunate;but,ofcourse,itisnoteasytomakethe______fromoneculturetoanother.
Revengeisoneofthosethingsthateveryoneenjoys.Peopledon’tliketotalkaboutit,though.Justthesame,thereisnothing
Experiencedbaseballfielderscantellhowfaraballisgoingtotraveljustbylisteningtothecrackofthebat.Iftheydidn
Wewantyoutodescribealltheeventsofthatmorninginsequencewithoutanydelay.
ThanksgivingDayisanannualholidaycelebratedintheUnitedStatesonthefourthThursdayinNovember,anditismostclosely
ThanksgivingDayisanannualholidaycelebratedintheUnitedStatesonthefourthThursdayinNovember,anditismostclosely
Man:We’realmostfinishedwiththeproject.Maybeweshouldstopforabreaknow.Woman:Actually,Iwouldprefertokeepgo
Laundryis,afterall,justlaundry.Exceptwhenit’snot.AndProcter&GambleCo.recentlyrealizedthatTide,itssegment-dom
Bettywasoffendedbecauseshefeltthatherfriendshadignoredherpurposefullyattheparty.
随机试题
临床研究中的试验药品:
罗格列酮为
《中华人民共和国固体废物污染环境防治法》对固体废物污染环境的防治实行()的原则,促进清洁生产和循环经济发展。
戊公司对外币交易业务采用当月月初的市场汇率作为即期近似汇率进行折算。某年5月31日和6月1日的市场汇率均为1美元=8.10元人民币,各外币账户5月31日的期末余额分别为银行存款5万美元、应收账款1万美元、应付账款1万美元、短期借款1.5万美元。该公司当年6
材料一:雾霾是一种灾害性天气,会造成空气质量下降,影响生态环境,给生产、生活和人体健康带来较大危害。2013年1月4日《人民日报》披露:“连日来,我国中东部地区厚重的雾霾久久挥之不去。大雾中,一条深褐色的巨大污染带斜穿1/3的国土,从北京、天津到石家庄,从
外来务工的刘某夫妇在当地产下一男孩,今年已满七岁,但迟迟不能上学,当地教育局给出的理由是没有当地户籍。下列说法正确的是()。
下列属于公安刑事司法的侦查措施的是( )。
公安机关通缉的对象是()。
下面关于数据结构的叙述中,正确的是______。
HowmanyjobsarelikelytobelostatVieVitale?Jobcutsarenotexpectedin______.
最新回复
(
0
)