首页
登录
职称英语
A full night’s sleep’/Not everyone needs it. The truism that all adults nee
A full night’s sleep’/Not everyone needs it. The truism that all adults nee
游客
2024-10-22
16
管理
问题
A full night’s sleep’/Not everyone needs it. The truism that all adults need at least eight hours of sleep a night for good health should be put to rest by mounting evidence that less may be better.①
People who sleep about seven hours a night live the longest, three huge studies have found, the newest out in the February issue of the journal Sleep. Still, many sleep experts say lots of adults get too little rest, and that can lead to dangerous health problems.
In the latest report from Japanese researchers, 104,010 adults were followed for about 10 years. At the start the participants answered questionnaires about their sleep patterns and about their health mental health and lifestyle habits, which also can affect survival. After accounting for all of these factors, adults getting all average of seven hours had the lowest death rates. Surprisingly, less sleep ,even as little as four hours a night, didn’t significantly increase deaths for men and only lowered survival for women if they averagde less than four hours② But adults who slept longer than seven hours, particulary women, were more likely to die during the 10 years.
Two other major published studies and a dozen smaller ones came to similar conclusions, says psychiatrist Daniel Kripke, a sleep researcher at the University of California-San Diego School of Medicine. Doctors shouldn’t tell all of their patients to get at least eight hours of sleep, he says in an editorial in the journal. Hormonal changes triggered by darkness or other unknown biological effects from long sleep could be affecting survival,③ Kripke,says.
But short sleepers may suffer other bad effects. In his brief studies, those sleeping four to five and a half hours did poorly on tests that measure memory, clear thinking and the ability to pay attention, "and they did progressively worse as the week went on," says David Dinges of the University of Pennsylvania School of Medicine. Adults who slept about seven hours performed best, he says. Other small studies have found adults who sleep less than six hours may be at higher risk for some diseases like diabetes and overweight. And sleep deprivation also causes car crashes, Dinges says. "People should get as many hours sleep, p as they need to feel rested," Kripke says, adding that there’s no proof that shortening sleep will lengthen life. s1eep need is partly genetic and may be determined by other factors that also influence life span, he says. [br] How many hours of sleep are the healthiest for most people?
选项
A、At least eight hours.
B、Around seven hours.
C、As many as you need.
D、Less than seven hours.
答案
B
解析
事实细节题。全文所表达的意思就是七小时睡眠对于大多数成年人来讲都是最健康的,因此可判断选项 B 正确。虽然文章末尾也提到了应根据每个人的不同需求睡眠,这样才能得到休息和感觉舒服。但是前文所叙述的多个试验结果表明,七小时睡眠是最健康的。
转载请注明原文地址:https://tihaiku.com/zcyy/3812962.html
相关试题推荐
Afullnight’ssleep’/Noteveryoneneedsit.Thetruismthatalladultsnee
Afullnight’ssleep’/Noteveryoneneedsit.Thetruismthatalladultsnee
Afullnight’ssleep’/Noteveryoneneedsit.Thetruismthatalladultsnee
Howmanyadultswerekilledintheexplosion?[br][originaltext]Atleast
Whydoadultsbelievethatalcoholicawarenessprogramsteachyoungpeople
Whydoadultsbelievethatalcoholicawarenessprogramsteachyoungpeople
Whydoadultsbelievethatalcoholicawarenessprogramsteachyoungpeople
Thelawrequiresthateveryone______hiscarcheckedatleastonceayear.A、has
ObesityratesforAmericanadultshavestabilized【C1】______therateofchild
ObesityratesforAmericanadultshavestabilized【C1】______therateofchild
随机试题
Englishhasbeensuccessfullypromoted,andhasbeeneagerlyadoptedinthe
NotSeeingtheForestfortheDollarBillsA)TheU.S.Fisha
[originaltext]M:Ienjoyedyourlecturetoday,Dr.Beech.Seeyou.W:Goodbye.
[originaltext]M:Mum!W:Yes?What’sthematter?M:I’mwonderingifIshouldb
认为生姜为“呕家圣药”的医家是( )。A.张仲景 B.孙思邈 C.刘完素
A.胞浆B.肝脏C.线粒体D.乳腺E.肾脏糖异生的主要器官是
共用题干 唐先生夫妇都是国有企业中层管理人员,二人均为45岁,家庭年收入总额为
工程保险合同的主体包括()。A:保险人和受益人 B:投保人与被保险人 C:
直流保护电器配置检查中,充电装置直流侧出口回路、直流馈线回路和蓄电池试验()应采
下列职权中,不属于有限责任公司股东会职权的是( )。 A.决定公司的经营方针
最新回复
(
0
)