The mechanism for these risks appears to lie in the biology of the stress-response system and in the way environment affects a person's genetic activity.

患病风险高于常人的机理似乎来源于压力——反馈系统的生物学原理以及环境对人基因活动的影响。

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The finding also shows that the brain could increase the activity of the sympathetic nerves, the part of the nervous system involved in stress response.

这些发现也显示，大脑能增加交感神经的活动，而交感神经是负责压力响应的神经系统。

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The researchers, who detail their work in the August issue of the journal Archives of Surgery, suggest the personality type is linked with the body's immune system as well as stress response system.

这些研究者把他们的工作在八月份的上一篇文章中作了详细的报告，报告暗示说个人的性格类型与个人的身体免疫系统以及压力反应系统有关。

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In keeping with previous work, they found that high- and low-rank individuals showed different levels of responsiveness to a class of hormones called glucocorticoids, which regulate immune-system activity and response to stress.

ECONOMIST: Social status and health