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
44
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/vVTd777K
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
TheStateofMarriageTodayIstheresomethingseriouslywrongwithmarriagetoday?Duringthepast50years,therateofdi
Farmers’MarketsCharlotteHollinsknowsshefacesabattle.The23-year-oldBritishfarmerandher21-year-oldbrotherBen
StressLevelTiedtoEducationLevelPeoplewithlesseducationsufferfewerstressfuldays,accordingtoareportinthecu
TakingPicturesoftheWorldAnnieGriffithsBeltisaNationalGeographicphotographer.ShehasworkedforNationalGeograp
Thepoliceareworkinginconjunctionwithtaxofficersontheinvestigation.
Thetiesymbolizesallofthefollowingexcept______.WhobroughttheFrenchmen’sneckweartoBritain?
Whendidtheauthorfallinlovewiththeboy?Whydidheleaveher?
TheAmericanFamilyIntheAmericanfamilythehusbandandwifeusuallyshareimportantdecisionmaking.Whenthechildrenar
ThefamousbankerhasconsiderableinfluencewiththePresidentoftheUnitedStates.
随机试题
闸压床设备,除了成型直线零件弯曲外,还可进行冲孔、闸压带曲度的零件等。()
未来幼儿园的发展趋向是()
国际货物进口运输中,发生货损货差时,无论是班轮运输还是租船运输都应该由发货人或收货人直接向承运人办理索赔。()
国有企业进行境内外期货交易,应遵循()原则,严格遵守有关部门关于企业以国有资产进入期货市场的规定。
下列叙述中,不属于政府及其所属部门滥用行政权力限制竞争的行为的是()。
下面不属于旅行社责任险赔偿范围的有()。
我国传统教育方式对现代教育的启示,错误的是()。
张某与王某签订了一份借款合同,张某为借款人,王某为出借人,借款数额为500万元,借款期限为两年。A机构、B机构为该借款合同进行保证担保,担保条款约定,如张某不能如期还款,A机构、B机构承担保证责任。同时,李某对张某与王某的借款合同进行了抵押担保,担保物为一
下列叙述中,不正确的是
A、 B、 C、 B
最新回复
(
0
)