首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Stress is a word commonly found in today’s vocabulary, and is often used to describe modern working and living patterns, especia
Stress is a word commonly found in today’s vocabulary, and is often used to describe modern working and living patterns, especia
admin
2010-04-24
35
问题
Stress is a word commonly found in today’s vocabulary, and is often used to describe modern working and living patterns, especially in big cities. Yet stress has been a part of daily life since time immemorial. Thus it would be more pertinent to define stress as the way in which the human body deals with all kinds of threatening situations, from confrontations with wild, vicious animals, to struggling through a crowded subway station during the early-morning rush hour: the effects on the body being universal.
When confronted with a stressful situation the body reacts by releasing a hormone known as ACTH from the posterior pituitary gland situated at the base of the brain. The hormone, traveling through the network of arteries that make up the primary blood supply route, reaches the kidneys, or more specifically, glands situated on the peripheries, where it stimulates the release of adrenaline. This has an antagonistic effect on various bodily functions. That is to say it stimulates a response in certain organs, whilst inhibiting action in others. In other words a type of trade-off is reached, whereby energy saved by shutting down one function is thus used to enhance the performance of a neighbor. In this way, the body can prepare itself fully for the oncoming danger by using, primarily, the same given amount of energy, giving rise to what is known as the fight or flight response.
When the fight or flight response is activated, with the release of adrenaline, blood is directed away from non-vital functions such as the skin and digestion, and redirected to the essential organs such as the brain to facilitate thought, the large muscle groups to facilitate speed, and the lungs to increase the amount of oxygen uptake into the bloodstream, whilst the heart beats faster to pump the blood round the body at an increased rate of speed, and raising the blood pressure. Once the stressful situation has passed the opposite occurs, resulting in what is known as the sympathetic rebound. The heart slows down and blood is re-directed away from the lungs, brain and muscles, flowing, once more, to every part of the body, whilst digestion resumes. It is, however, the sympathetic rebound, or more specifically, the effects of the sympathetic rebound that lead to the myriad of modern stress-related diseases.
Stress, in fact, has been linked to many more common diseases, such as cancer and even the common cold. The reason for this is that during the fight or flight response the body’s immune system that fights disease is also shut down, leaving the person more vulnerable to illness, and is, indeed, one of the commonest forms of stress-related problems. Unfortunately, however, modern life is packed full of stressful situations, and costs industry, thus the economy, millions of dollars each year in lost revenue. Traveling to work in morning, meeting tight deadlines whilst at work, studying to further one’s qualifications, paying the mortgage or children’s school fees are but a few. Thus, it transpires that stress is a modern day epidemic that urgently needs addressing.
Modern stress-related illnesses are believed to be caused by ______ .
选项
A、being under constant stress
B、the aftereffects of stress
C、modern life styles
D、the release of adrenaline
答案
B
解析
推理判断题。根据题干中stress-related illnesses与caused在文中定位到第三段。最后一句“the effects of the sympathetic rebound that lead to the myriad of modern stress-related diseases.”可知身体在对压力的反应的基础上,导致现代与压力相关的疾病的发生。选项A 和C 在本段中没有提及,D 为无用信息,可以排除。
转载请注明原文地址:https://jikaoti.com/ti/Hz8MFFFM
0
专业英语四级
相关试题推荐
Somepeoplebelievethatinternationalsportcreatesgoodwillbetweenthenations.Theythinkthatifcountriesplaygamestoget
Ourape-menforefathershadnoobviousnaturalweaponsinthestruggleforsurvivalintheopen.Theyhadneitherthepowerfult
Ourape-menforefathershadnoobviousnaturalweaponsinthestruggleforsurvivalintheopen.Theyhadneitherthepowerfult
Ourape-menforefathershadnoobviousnaturalweaponsinthestruggleforsurvivalintheopen.Theyhadneitherthepowerfult
Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisuse.Theyseeadayinthenot-too-distantfuturewhe
Mostchildrenwithhealthyappetitesarereadytoeatalmostanythingthatisofferedtothemandachildrarelydislikesfood【
Computerpeopletalkalotabouttheneedforotherpeopletobecome"computer-literate",inotherwords,tolearntounderstan
Theguestssaidthattheywouldn’tmind______.
Whatkindofweatherwillitbewhendistantobjectssuch~ashillsandtalltreesseemtobeveryclearandnear?
Lichenscanbespectacularforanyonewhocarestolook,butfewpeopletakethetrouble.Oftenmodestlycolored,andseemingly
随机试题
患儿,4岁,近1月来父母发现其夜间经常突然坐起、尖叫、呼喊、哭闹,手足乱动,或从床上跳下,表情紧张,气急,颤抖,意识模糊,不认识父母,数分钟后安静下来,继续入睡。醒后对发作不能回忆。由父母陪同至医院门诊。该患者的诊断最可能是()
不属于病案资料收集内容的是
影响PPP项目具体运作方式选择的因素主要包括()。
现行法规规定,因纳税义务人违反规定造成少征或者漏征税款的,海关可以在规定的期限内追征税款,并从缴纳税款或者货物放行之日起至海关发现违规行为止,按日加收少征或漏征税款的滞纳金。其规定期限和滞纳金征收标准分别为( )。
人民法院受理破产申请时,出卖人已将买卖标的物向作为买受人的债务人发运,债务人尚未收到且未付清全部价款的,()。
银行存款利率和证券市场的股票价格,两者是相互影响的关系。这两者的关系用曲线来表示,应该是
Nearlythree-quarteroftheEarthiscoveredwithwater.The【B1】______ofthecontinents,especiallyinthetemperatezones,isv
对于以下程序段: AGAIN:MOV AL,[SI] MVO ES:[DI],AL INC SI INC DI LOOP AGAIN 也可以用下
Inrecentyears,therehasbeenabigincreaseinairtravelandmanylargeairportshavenowreachedthelimitofthenumberof
A、Theyconsideredherlazy.B、Theysawsomethingtheyhadneverseen.C、Theyconsideredherfoolish.D、Theysawsomethingfamili
最新回复
(
0
)