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
2023-07-27
71
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] For our bodies to function properly, we should______.
选项
A、sleep for at least eight hours per night
B、believe that we need less sleep as we age
C、adjust our activities to the new inventions
D、be able to predict the rhythms of our biological docks
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2873721.html
相关试题推荐
[originaltext]Inthepastfewyears,millionsofAmericanshavebecomesudd
[originaltext]Inthepastfewyears,millionsofAmericanshavebecomesudd
ElectricCars:Low-impactVehicleAfteryearsoffalses
ElectricCars:Low-impactVehicleAfteryearsoffalses
ElectricCars:Low-impactVehicleAfteryearsoffalses
ElectricCars:Low-impactVehicleAfteryearsoffalses
ElectricCars:Low-impactVehicleAfteryearsoffalses
Inthesamewaythatachildmustbeabletomovehisarmsandlegsbeforeh
Inthesamewaythatachildmustbeabletomovehisarmsandlegsbeforeh
Inthesamewaythatachildmustbeabletomovehisarmsandlegsbeforeh
随机试题
ThethreehoursIspentintheschoollibrary______myoldpassionforreading.
MarjorieMcMillan,headofradiologyataveterinaryhospital,foundoutby
Beingfatdoesn’tnecessarilymeanyou'r
外伤致侧方移位的牙齿治疗方法错误的是A.局麻下复位 B.先根向复位,再解除唇腭
经济评价应遵循的基本原则包括()。A.以动态分析为主 B.以定量分析为主
国际标准化组织(ISO)指定的开放式系统互联参考模型(OSI)共有七层,由低层到
患者,男,66岁,BMI31.2kg/m,体检时发现血糖异常前来就诊,空腹血糖8
降糖作用迅速,被称为“餐时血糖调节剂”的降糖药是A.瑞格列奈 B.格列美脲
甲公司将一张商业承兑汇票背书转让给乙公司,乙公司于汇票到期日2020年5月
多见于体弱、心肺慢性疾病患者院内获得性感染的是() A.干酪性肺炎 B.葡萄
最新回复
(
0
)