帮忙写一份英文摘要
Researchers in the psychology department at the University of California at Los Angeles (UCLA) have discovered a major difference in the way men and women respond to stress. This difference may explain why men are more likely to suffer from stressrelated disorders.Until now，psychological research has maintained that both men and women have the same “fightorflight” reaction to stress.In other words,individuals either react with aggressive behavior, such as verbal or physical conflict (“fight”) or they react by withdrawing from the stressful situation (“flight”)． However, the UCLA research team found that men and women have quite different biological and behavioral responses to stress.While men often react to stress in the fightorflight response, women often have another kind of reaction which could be called “tend and befriend.”That is，they often react to stressful conditions by protecting and nurturing their young (“tend”)，and by looking for social contact and support from others -- especially other females (“befriend”)．Scientists have long known that in the fightorflight reaction to stress,an important role is played by certain hormones (激素) released by the body.The UCLA research team suggests that the female tendorbefriend response is also based on a hormone.This hormone,called oxytocin,has been studied in the context of childbirth,but now it is being studied for its role in the response of both men and women to stress.The principal investigator, Dr.Shelley E.Taylor,explained that “animals and people with high levels of oxytocin are calmer,more relaxed,more social,and less anxious.”While men also secrete (分泌) oxytocin,its effects are reduced by male hormones.In terms of everyday behavior,the UCLA study found that women are far more likely than men to seek social contact when they are feeling stressed.They may phone relatives or friends,or ask directions if they are lost.The study also showed how fathers and mothers responded differently when they came home to their family after a stressful day at work.The typical father wanted to be left alone to enjoy some peace and quiet.For a typical mother,coping with a bad day at work meant focusing her attention on her children and their needs.The differences in responding to stress may explain the fact that women have lower frequency of stressrelated disorders such as high blood pressure or aggressive behavior.The tendandbefriend regulatory (调节的) system may protect women against stress,and this may explain why women on average live longer than men. 谁能用英文写出这篇文章的summary。要English summary如果朋友在此没有征集到好的回答，建议这位朋友去360问答社区（http://wenda.so.com/）相关分类中征集回答，360问答社区的平台上不但有非常多的热心网友和牛人们能帮助到你！同时有了满意答案后还能帮助到其他不懂这个问题的人！感谢朋友对360问答支持！友情提示，悬赏征集会助于你问题的快速解决！一旦有能解决朋友问题的答案的时候，朋友要记得采纳，这样会换来更多朋友的帮助！
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