首页
登录
职称英语
For millions of years before the appearance of the electric light, shift wor
For millions of years before the appearance of the electric light, shift wor
游客
2024-02-28
62
管理
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 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 with possible chronic fatigue syndrome actually 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 is’ sleep defensively’, says Mary Carskadon of Brow University. She says people need to carve out sufficient time to sleep, even if it means giving up other things. Sleep continues-like going to bed and getting up at the same time every day -- are important. Pre-bedtime activities also make a difference. As with Elsner, 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. [br] 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
转载请注明原文地址:https://tihaiku.com/zcyy/3489982.html
相关试题推荐
[originaltext]W:Justafewremindersarenecessarybeforeyouclimbin.First,
[originaltext]W:Justafewremindersarenecessarybeforeyouclimbin.First,
Whateverdidwedobeforetheinventionofthezipper?In1893theworld’sfirst
Whateverdidwedobeforetheinventionofthezipper?In1893theworld’sfirst
Whateverdidwedobeforetheinventionofthezipper?In1893theworld’sfirst
Whateverdidwedobeforetheinventionofthezipper?In1893theworld’sfirst
Whateverdidwedobeforetheinventionofthezipper?In1893theworld’sfirst
Whateverdidwedobeforetheinventionofthezipper?In1893theworld’sfirst
Themodernageisanageofelectricity.Peoplearesousedtoelectriclights,
Themodernageisanageofelectricity.Peoplearesousedtoelectriclights,
随机试题
Whatpromptedtheconversation?[br][originaltext]M:I’dliketoputanadin
受到中国经济内部动力(dynamics)和外来压力的共同影响,人民币近几年来不断升值(appreciate)。内部影响主要有中国物价水平、通货膨胀状况、
______thepunishmentwasunjust,Henryaccepteditwithoutcomplaint.A、Solonga
Thedressistoo(cost)______andIcan’taffordit.costly句意:这条裙子太贵了我买不起。该题考查的是
选题计划结构优化的目标不包括( )。A.树立出版单位品牌 B.保证出版物总体
以下关于桥梁部件技术状况评定方法的表述,正确的是()。A.构件数量不影响部
电容式电压互感器允许在(____)额定电压下连续运行。1.2倍$;$1.
下列属于金融市场短期信用工具的有()。A.债券 B.汇票 C.股票 D.本
为预测和分析建设项目存在的职业危险、危害因素种类及危害程度,并提出合理应对措施而
(2020年真题)根据《工伤保险条例》,下列情形中,应当认定为工伤或者视同工伤的
最新回复
(
0
)