Stress in the city To measure the amount of stress an individual had suffered over the course of his life, the two researchers used an index known as allostatic load.

为了测量一个人在他人生中的一段时间所受到的压力，两位研究人员用到了一个 著名的指数：非稳态负荷 。

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The fMRI scans showed that volunteers who currently lived in a city exhibited greater activation in the amygdala than did rural denizens during social stress.

核磁共振成像显示目前居住在城市的志愿者在社会压力下比乡村居住表现出更强的扁桃体活性。

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It is the stress of a people living in a city under siege.

这是生活在围城中的人们所承受的压力。

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The money will also be used to beef up mental health services, to help combat the post-traumatic stress that many in the city are still experiencing eight months after Hurricane Katrina.

NPR: Officials: Louisiana Hospitals Face Years of Recovery

So far, many public estimates have said that perhaps a tenth of the tens of thousands of people who are trapped in the city might suffer from post-traumatic stress disorder, a disease that raises the risk of suicide sixfold.

FORBES: Katrina's Mental Toll To Be Huge

Others, such as Terry Nichols Clark, of the University of Chicago, stress the pleasures of the city as a reason to live there: entertainment, they say, can replace manufacturing in the post-industrial city, providing both jobs and fun.

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