首页
登录
职称英语
Judging from recent surveys, more experts in sleep behavior agree that ther
Judging from recent surveys, more experts in sleep behavior agree that ther
游客
2024-09-30
18
管理
问题
Judging from recent surveys, more experts in sleep behavior agree that there is virtually an epidemic of sleepiness in the nation. "I can’t think of a single study that hasn’t found Americans getting less sleep than they ought to," says Dr. David. Even people who think they are sleeping enough would probably be better off with more rest.
The beginning of our sleep-deficit crisis can be traced to the invention of the light bulb a century ago. From diary entries and other personal accounts from the 18th and 19th centuries, sleep scientists have reached the conclusion that the average person used to sleep about 9.5 hours a night. "The best sleep habits once were forced on us, when we had nothing to do in the evening down on the farm, and it was dark." By the 1950s and 1960s, that sleep schedule had been reduced dramatically, to between 7.5 and eight hours, and most people had to wake to an alarm clock. "People cheat on their sleep, and they don’t even realize they’re doing it." says Dr. David. "They think they are okay, because they can get by on 6.5 hours, when they really need 7.5, eight or even more to feel ideally vigorous."
Perhaps the most merciless robber of sleep, researchers say, is the complexity of the day. Whenever pressures from work, family, friends and community mount, many people consider sleep the least expensive item on his program. "In our society, you’re considered dynamic if you say you only need 5.5 hours’ sleep. If you’ve got to sleep 8.5 hours, people think you lack drive and ambition."
To determine the consequences of sleep deficit, researchers have put subjects through a set of psychological and performance tests requiring them, for instance, to add columns of numbers or recall a passage read to them only minutes earlier. "We’ve found that if you’re in sleep deficit, performance suffers," says Dr. David. "Short-term memory is weakened, as are abilities to make decisions and to concentrate." [br] The underlined word "subjects" (Para. 4) refers to ______.
选项
A、the performance tests used in the study of sleep deficit
B、special branches of knowledge that are being studied
C、people whose behavior or reactions are being studied
D、the psychological consequences of sleep deficit
答案
C
解析
根据第四段第一句"To determine the consequences of sleep deficit,researchers have put subjects through a set of psychological and performance tests requiring them,for instance,to add columns of numbers or recall a passage read to them only minutes earlier.”,就可以推断出
转载请注明原文地址:https://tihaiku.com/zcyy/3781169.html
相关试题推荐
HowlongdoesittakefortherunnerstocrossthestartinglineinrecentMarat
Whathasrecentresearchfoundaboutdrinking?[br][originaltext]Researche
Whathasrecentresearchfoundaboutdrinking?[br][originaltext]Researche
Judgingfromrecentsurveys,moreexpertsinsleepbehavioragreethatther
Judgingfromrecentsurveys,moreexpertsinsleepbehavioragreethatther
Judgingfromrecentsurveys,moreexpertsinsleepbehavioragreethatther
ShewassurethatherDadwouldhardlytolerateherbadbehavior,_____________?A
Humanbehaviorismostlyaproductoflearning,______thebehaviorofanimalsd
InarecentbookentitledThePsychicLifeofInsects,ProfessorBouviersay
InarecentbookentitledThePsychicLifeofInsects,ProfessorBouviersay
随机试题
()阳性反应()腹部绞痛[br]()气喘()小便刺痛G、F
[originaltext]W:Hey,Mike!Whereareyouoffto?M:I’mheadingforthePrice
Ofthe143nativelanguagesinMexico,60areatriskofbeingsilencedfore
Jenny:Hey,Rosy,IheardthatyouaregoingtoTheMalltoday.Rosy:【D1】______
肺吸虫病吸虫病可出现的症状、体征A.铁锈色痰B.肝、脾大,腹水C.肛门瘙痒D.胆
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性: A.如
“人有悲欢离合,月有阴晴圆缺”,圆缺就是指“月相变化”,即地球上看到月球被太阳照
某五层现浇钢筋混凝土框架结构,双向柱距均为8.1m,房屋总高度18.3m。抗震设
(2014年真题)未达到固定资产标准的工器具购置费的计算基数一般为()。A.工
知识点:糖尿病 反应糖尿病病情控制情况的指标是 A.空腹血糖及餐后2小时血糖
最新回复
(
0
)