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  3. Warm People Likely to Keep Cold at Bay Staying positive through the cold season could be your best defense against getting i

Warm People Likely to Keep Cold at Bay Staying positive through the cold season could be your best defense against getting i

admin2011-01-05  65
问题                Warm People Likely to Keep Cold at Bay
    Staying positive through the cold season could be your best defense against getting ill, new study findings suggest. In an experiment that exposed healthy volunteers to a cold or flu virus, researchers found that people with a generally sunny disposition were less likely to fall ill.
    The findings, published in the journal Psychosomatic Medicine, build on evidence that a "positive emotional style" can help ward off the common cold and other illnesses. Researchers believe the reasons may be both objective as in happiness boosting immune function and subjective as in happy people being less troubled by a scratchy throat or runny nose.
    "People with a positive emotional style may have different immune responses to the virus. " explained lead study author Dr Sheldon Cohen of Carnegie Mellon University in Pittsburgh. "And when they do get a cold, they may interpret their illness as being less severe. "
    Cohen and his colleagues had found in a previous study that happier people seemed less susceptible to catching a cold, but some questions remained as to whether the emotional trait itself had the effect.
    For the new study, the researchers had 193 healthy adults completes stand, self-perceived health and emotional "style". Those who tended to be happy, energetic and easy-going were judged as having a positive emotional style, while those who were often unhappy, tense and hostile had anegative style.
    The researchers gave them nasal drops containing either a cold virus or a particular flu virus. Over the next six days, the volunteers reported on any aches, pains, sneezing or congestion they had, while the researchers collected objective data, like daily mucus production. Cohen and his colleagues found that based on objective measures of nasal woes, happy people were less likely to develop a cold.
How did the researchers test their volunteers?
选项 A、By giving everyone nasal drops containing either a cold virus or a particular flu virus.
B、By giving everyone a medicine that help lessen the probability of catching cold.
C、By giving everyone an injection boosting immune function.
D、By investigating everyone’s characteristics, interests and hobbies.
答案A
解析 第六段第一句说的就是“研究者给这些志愿者一些含有感冒病毒或某种流感病毒的滴鼻液”，因此答案A是正确的。
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