2. 外语
  3. "Humans should not to try to avoid stress any more than they would shun food, love or exercise", said Dr. Hans Selye, the first

"Humans should not to try to avoid stress any more than they would shun food, love or exercise", said Dr. Hans Selye, the first

admin2010-03-26  49
问题     "Humans should not to try to avoid stress any more than they would shun food, love or exercise", said Dr. Hans Selye, the first physician to document the effects of stress on the body. While here is the question that continuous stress is harmful, several studies suggest that challenging situations in which you’re able to rise to the occasion can be good for you.
    In a 2001 study of 158 hospital nurses, those who faced considerable work demands but coped with the challenge were more likely to say they were in good health than those who felt they stress that you can manage also boost immune (免疫的) function, in a study at the Academic Center for Dentistry in Amsterdam, researchers put volunteers through two stressful experiences: in the first, a timed task that required memorizing a list followed by a short test; in the second, subjects through a gory (血淋淋的)video on surgical procedures. Those who did well on the memory test had an increase in levels of immunoglobulin A, an antibody that is the body’s first line of defense against germs. The video-watchers experienced a downturn in the antibody.
    Stress prompts the body to produce certain stress hormones. In short busts these hormones have a positive effect, including improved memory function. "They can help nerve cells handle information and put it into shortage," says Dr. Bruce McEwen of Rockefeller University in New York. But in the long run these hormones can have a harmful effect on the body and brain.
    "Sustained stress is not good for you," says Richard Morimoto, a researcher at Northwestern University in Illinois studying the effects of stress on longevity, "It is the occasional burst of stress or brief exposure to stress that could be protective."  
We can conclude from the study of the 158 nurses in 2001 that ______.
选项 A、people under stress tend to have a poor memory
B、people who can’t get their job done experience more stress
C、doing challenging work may be good for one’s health
D、stress will weaken the body’s defense against sperms
答案C
解析 本文所要介绍的信息是短暂的压力对人的积极作用，而作为例子，那些护士的经历也证明了这一点。
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