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
外语
For millions of years before the appearance of the electric light, shift work, all night cable TV and the Internet, Earth’s crea
For millions of years before the appearance of the electric light, shift work, all night cable TV and the Internet, Earth’s crea
admin
2010-05-09
61
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.
What is TRUE of human sleep?
选项
A、Most people need less sleep when grown older.
B、Most people need seven and a half hours of sleep every night.
C、On average, people in the US today sleep less per night than they used to.
D、Most people need more sleep when they are under pressure.
答案
C
解析
事实细节题。根据第一段最后一句可知A项说法错误;根据第二段第一句可知C项正确,B项内容是对此句的曲解;D项内容文章中没有提到。
转载请注明原文地址:https://kaotiyun.com/show/qnKK777K
0
大学英语六级
相关试题推荐
A、Eliminatingtheoriginalvegetationfromthebuildingsite.B、Markingthehousesinanareasimilartooneanother.C、Deciding
A、Theopeningupofnewmarkets.B、Theprintingofhighqualitycopies.C、TheincreaseduseoftheInternet.D、Therapiddevelop
Somepeoplehavetheage-olddesiretoputthejokeonothers.Dihydrogenmonoxideisaverydangerouschemical,whichisoften
A、ItisthefirstoldestbridgeinNewYork.B、ItisthefirstsuspensionbridgebuiltintheUSA.C、Itisthefirstsuspendedr
A、Herbackhurtduringthemeeting.B、Hissupportdoesnotmeananythingnow.C、Sheagreedthatitwasaverygoodmeeting.D、Th
A、Hekeepsforgettingtheimportantthingshehastodo.B、HehasgreatdifficultyrememberingKoreanwords.C、Hecan’tfindthe
Evaporationfromseawaterisabout5%lessthanfromfreshwater,______(当其他所有条件都相同时).
A、Womenaremorewillingtogivehelpthanmen.B、DearAngelispopularamongtheyoungpeople.C、Experienceismoreimportantf
Earthquakesareprobablyoneofthemostfrighteninganddestructivehappeningsofnaturethatmanexperiences.Theyhavecaused
InanefforttomakeupforsomeoftheglaringlimitationsofIQtests,researchershavebeguntodevelopnewwaystomeasuret
随机试题
下列关于氨茶碱的应用描述不正确的是()
急性胰腺炎解痉镇痛不宜应用
产妇,28岁。因第二产程延长,经助产分娩一男婴,体重3500g。胎盘娩出后阴道持续出血约800ml。护理措施正确的是
地骨皮的功效有()。
消防员:消防车:消防服()
ImaginethataBritishmarketingfirmisdoingresearchinyourcountry.Youhaveagreedtoparticipateinatelephoneinterview
Toseehowbigcarrierscouldcontroltheonlineworld,youmustunderstanditsstructures.EarthlinkgivesJenniferaccesstot
ManycountrieswillnotallowcigaretteadvertisingintheirnewspaperoronTV—especially【C1】______theadvertisementsareusu
Heorderedthateverything_______keptinitsoriginalformbeforehisauntleft.
WhenfoodisprocessedandpackagedintheUnitedStates,byproductssuchasrindsandpeelsareoftenusedinanothereconomica
最新回复
(
0
)