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
52
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
A
解析
转载请注明原文地址:https://kaotiyun.com/show/DFHd777K
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
MedicalJournalsMedicaljournalsarepublicationsthatreportmedicalinformationtophysiciansandotherhealthprofession
HowaTerribleBattleHelpedtoChangeEuropeNinetyyearsagoonasunnymorninginNorthernFrance,somethinghappenedthat
HowaTerribleBattleHelpedtoChangeEuropeNinetyyearsagoonasunnymorninginNorthernFrance,somethinghappenedthat
AliveabetterlifeBmadeupofmorethan50islandsChavemorefarmlandDnotbytheParliament,butbythepeopleEproduce
StresslevelTiedtoEducationLevelPeoplewithlesseducationsufferfewerstressfuldays,accordingtoareportinthecu
Themainpurposeofthispassageisto______.Theauthor’sresponsetothosewhourgethedeathpenaltyforalldegreesofmur
MedicalJournalsMedicaljournalsarepublicationsthatreportmedicalinformationtophysiciansandotherhealthprofession
Hecollapsedfollowingavigorousexercisesessionathishome.
Hecollapsedfollowingavigorousexercisesessionathishome.
随机试题
现有一张2009年6月1日出票,付款日期为出票后2个月的汇票。该张汇票提示付款期截止于()
毛泽东首次将中国共产党的优良作风概括为三大作风的是()。
患儿女性,新生8天,因拒奶、四肢强直2天入院。患儿系G2P2,母孕41周,在家中顺产出生,家人应用刀片断脐,羊水、胎盘情况不详,体重3.75kg。生后母乳喂养,吸吮可,无呕吐。生后第6天患儿出现多哭,拒奶,抽搐,四肢强直,张口困难,双手握拳,脐轮红,脐部有
引起尖锐湿疣的病毒主要是
责任制原则
甲公司是ABC会计师事务所的常年审计客户。A注册会计师负责审计甲公司2013年度财务报表,确定财务报表整体的重要性为240万元,税前会计利润为180万元。资料六:A注册会计师在审计过程中识别并累积了3笔错报,并认为这些错报均不重大,同意
甲公司为一上市的集团公司,原持有乙公司30%股权,能够对乙公司施加重大影响。甲公司20×3年及20×4年发生的相关交易事项如下:(1)20×3年1月1日,甲公司从乙公司的控股股东一丙公司处受让乙公司50%股权,受让价格为13000万元,款项已用银行存款
国务院总理李克强在2016年政府工作报告中指出,我国2015年国内生产总值增长()。
•Readthetextbelowfromabrochure.•Foreachquestion(31-40),writeonewordinCAPITALLETTERSonyourAnswerSheet.
WhichofthefollowingdidNOTlaunchthe"roadmap"planin2003?
最新回复
(
0
)