首页
登录
职称英语
Judging from recent surveys, most experts in sleep behavior agree that there
Judging from recent surveys, most experts in sleep behavior agree that there
游客
2023-09-04
14
管理
问题
Judging from recent surveys, most 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 properly 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, the sleep schedule had been reduced dramatically, to between 7.5 and 8 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’re ok because they can get by on 6.5 hours, when they really need 7.5, 8 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 get 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] According to Dr. David, Americans ______.
选项
A、are ideally vigorous even under the pressure of life
B、often neglect the consequences of sleep deficit
C、do not know how to relax themselves properly
D、can get by on 6.5 hours of sleep
答案
B
解析
推理题。根据第二段最后一句,Dr. David指出美国人认为每天睡6.5小时就够了,但事实上他们需要7.5或8小时,甚至更多时间的睡眠才可以使他们感觉精神抖擞。忽略睡眠不足的结果是不能感觉完全的精神抖擞。
转载请注明原文地址:https://www.tihaiku.com/zcyy/2983767.html
相关试题推荐
Inrecentyears,railroadshavebeencombiningwitheachother,mergingintosup
Parentsneedtoteachchildrenthe______valueofgoodbehavior.A、subtleB、etern
Expertsdisagreeastowhycrimerateshavecontinuedtofall.SomesaytheU.S.
Thelibrarypublishedacollectionofbooksrecentlymade_________tothepubli
Shewas______fromherfriendsbyherfoolishbehavior.A、addictedB、alienatedC
Recentlyanumberofcaseshavebeenreportedofyoungchildren______aviolent
Recently,greatadvanceshavebeenmadeinthestudyofVenus’surfacebytheus
[originaltext]Inrecentyears,manyAmericansofbothsexesandvariousage
[originaltext]Inrecentyears,manyAmericansofbothsexesandvariousage
[originaltext]Inrecentyears,manyAmericansofbothsexesandvariousage
随机试题
下列企业类型中,可以采用分批法进行成本核算的有()。A.造船企业 B.重型机器
下列哪一项不是被动式太阳能采暖系统的特点?()A.间接得热系统 B.水墙
商业银行负债业务管理应遵循的原则不包括()。A.依法筹资原则 B.成本控制原则
对SLE患者的护理措施正确的是:A.加强户外锻炼,多晒太阳 B.皮损处用肥皂水
古语云:“善不积不足以成名,恶不积不足以灭身。”下列选项中,与此蕴含哲理一致的是
下列片剂不需测崩解度的是A、舌下片 B、多层片 C、分散片 D、咀嚼片
A. B. C. D.
劳动定员标准属于劳动定额工作标准,即以()为对象制定的标准。A:人力消耗 B:
劳动法律关系的主体包括()。A.行为 B.财物 C.劳动者 D.用人单位
手术区消毒范围的确定
最新回复
(
0
)