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
People who have a lot of stress are more likely to become sick.
People who have a lot of stress are more likely to become sick.
admin
2009-06-24
76
问题
People who have a lot of stress are more likely to become sick.
Scientists are now studying a new field of research called psychoimmunology. It is based on the idea that people who are depressed or have a lot of stress are more likely to become sick. Researchers have recently found a connection between diseases and stressful situations. To test this theory, psychoimmunologists are trying to find a link between the brain and the immune system.
The immune system in our bodies fights the bacteria and viruses which cause disease. Therefore, whether or not we are likely to get various diseases depends on how well our immune system works. Biologists used to think that the immune system was a separate, independent part of our bodies. Recently, however, they have found that our brain can affect our immune system. This discovery indicates that there may be a connection between emotional factors, such as stress or depression, and illness.
Although many doctors in the past suspected a connection between emotional factors and disease, they had no proof. Scientists have only recently discovered how the brain and the immune system function. Before this, no one could see a link between them. As a result, medical science never seriously considered the idea that psychological factors could cause disease.
Several recent studies showed a connection between stress and illness. For example, researchers went to an American military school to study the students. By studying the cadets’ blood, they found that many were infected with a virus which causes mononucleosis, a common glandular disease. Of the infected students, only 5 percent actually became ill. The sick cadets had a lot of academic pressure and wanted to achieve, but they were not very good students. In a similar study, researchers studied a group of student nurses. They focused on cold sores, which are also caused by a common, virus. Many student nurses carried the virus in their blood, but few of these infected nurses actually developed cold sores. The nurses who did develop cold sores were the ones who described themselves as generally unhappy people.
In addition to these results, which support their theory, researchers are also looking for proof that stress can damage the immune system. Researchers studied recently bereaved people, i.e., people whose loved ones have just died, because they are more likely to become ill or die. By examining the immune system of recently bereaved people, the researchers made an important discovery. They examined some white blood cells, called lymphocytes, which are an important part of the immune system. They were not functioning properly. The fact that they were not working correctly indicates that severe psychological stress, such as a loved one’s death, may damage an important part of our immune system, namely, the lymphocytes.
There is still no positive proof of a connection between the immune system and psychological factors. Researchers also say that the results of the studies on bereaved people could have a different explanation. For example, bereaved people often sleep and eat less than normal, or may drink alcohol or take medication. These factors can also affect the immune system. More research is needed to clearly establish the connection between the immune system and psychological factors.
选项
A、Right
B、Wrong
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/rVTd777K
本试题收录于:
公共英语五级笔试题库公共英语(PETS)分类
0
公共英语五级笔试
公共英语(PETS)
相关试题推荐
WashoeLearnedAmericanSignLanguage1Ananimalthatinfluencedscientificthoughthasdied.AchimpanzeenamedWashoeandbor
ThelowesttemperaturethatmanhaseverknownwasrecordedinAntarctica.TheArcticandAntarcticaarenoman’slandsbecause
GlobalWarmingFewpeoplenowquestiontherealityofglobalwarminganditseffectsontheworld’sclimate.Manyscientists
Whatarethetwodeclarationsconcernedwith?Whichstatementistrueaccordingtothe2000USCensusBureaureport?
Thiswasanunexceptionallybrutalattack.
MoreThan8HoursSleepTooMuchofaGoodThingAlthoughthedangersoftoolittlesleeparewidelyknown,newresearchsug
AdaptationofLivingThingsCertainanimalsandplantsdevelopcharacteristicsthathelpthemcopewiththeirenvironmentbe
Whichofthefollowingdoesthefirstparagraphimply?Whatdoestheauthorconclude?
Whendidtheauthorfallinlovewiththeboy?Whoadvisedhertobreakupwithhim?
TheAcquisitionofTwoCompaniesTheProvidentCompanies,theNo.2sellerofindividualdisabilityinsurancepolicies,agreedy
随机试题
违反道德的行为未必违反法律,违反法律的行为必然违反道德。()
BillClinton—oneofthe______AmericanpresidentsgaveaspeechlastweekinOxfordUniversity.
对消渴明确提出上、中、下分类的医家是
细胞癌基因产物的功能不包括
对癫痫病人进行健康指导以下错误的是()。
被告人刘东为某单位司机,男性,28岁。1998年3月27日,同张、赵二人开车送货、开车至市区以后,刘东仍以高速行驶,张提醒其到市区还是要小心点,刘东表示:我技术高超,没问题!当车行至一商场附近,由于刘东精力不集中,将前方一骑自行车的余某撞倒,刘东刹车不住
按照设计施工总承包合同条款的规定,对于大型工程为了检验承包人的设计、设备选型和运行情况等的技术指标是否满足合同的约定,通常在()工程稳定运行一段时间后,在专用条款约定的时间内进行竣工后试验。
某工程项目施工采用《水利水电工程标准施工招标文件》(2009年版),招标文件工期为15个月。承包方投标所报工期为13个月。合同总价确定为8000万元。合同约定:实际完成工程量超过估计工程量25%以上时允许调整单价;拖延工期每天赔偿金为合同总价的1‰,最高拖
李老师鼓励班里学生参加自己在校外私自开设的辅导班并收取一定费用,班里学生成绩有了一定提高,但却遭到了教育行政部门的处罚。针对本事件,正确的看法是()。
下列叙述正确的是()。
最新回复
(
0
)