5. D。推理判断题。从Then I knew how much she suffered on my behalf. She had never let me see her tears可知对于我的成长中的痛苦妈妈比我承受得还要多，即答案选D。

　　阅读下列四篇短文，从每小题后所给的A,B,C或D四个选项中，选出最佳选项。

　　Stress caused by social situations, such as giving a speech or going to a job interview, can affect some people’s immune system in ways that harm their health, researchers have found.

　　The study included 124 volunteers who were purposely put into embarrassed social situations. Those who showed greater neural (神经) sensitivity to social rejection also had greater increases in inflammatory (炎症) activity when exposed to social stress.

　　“It turns out there are important differences in how people explain and respond to social situations,” lead author George Slavich, at the Cousins Center for Psychoneuroimmunology at the University of California, Los Angeles, said in a UCLA news release.

　　“For example,” he explained, “we sometimes see giving a speech in front of an audience as a welcomed challenge; other times, it’s threatening and sad. In this study, we sought to examine the neural bases for these differences in response and to understand how these differences relate to biological processes that can affect human health and well-being.”

　　The findings provide “further evidence of how closely our mind and body are connected. We have known for a long time that social stress can get under the skin to increase risk for disease, but it’s been unclear exactly how these effects occur. As we know, this study is the first to identify the neurocognitive (神经认知) pathways that might be involved in inflammatory responses to sharp social stress,” Slavich said.

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