"It surprised us that this biology hadn't been studied before," he notes. "Stress influences so many normal physiological processes."

“这个以往生物学从来没有研究过的结果使我们震惊，”他继续指出，“压力影响了很多原本正常的生理过程。”

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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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However, "researchers already know that CRF regulation is disrupted in stress-related psychiatric disorders, so this research may be relevant to the underlying human biology," she said.

不过，“研究人员已经知道，CRF的调控是可以用来缓解与紧张有关的精神疾病，所以这项研究可能涉及到人类底层的生物学，她说。”

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Drugs, food and habitual behaviors all have a direct effect on the biology of stress.

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Class.com, for example, is considering different biology classes that stress creationism or evolutionary theory to appeal to Christian fundamentalists or secular families, respectively.

CNN: Web puts the home back in homework