Is playing football like falling in love? That question, which would perhaps not occur to most of us watching hours of the bruising game this holiday season, is the focus of a provocative and growing body of new science examining the role of oxytocin in competitive sports.Oxytocin is, famously, the "love hormone," a brain peptide known to promote positive intersocial relations. It makes people like one another, especially in intimate relationships. New mothers are awash in oxytocin (which is involved in the labor process), and it is believed that the hormone promotes bonding between mother and infant.New-formed romantic couples also have augmented bloodstream levels of the peptide, many studies show. The original attraction between the lovers seems to prompt the release of oxytocin, and, in turn, its actions in the brain intensify and solidify the allure.

踢球好似谈恋爱？当我们在假期日夜追看精彩比赛时，恐怕很少有人想到这一问题，然而在研究后叶催产素对竞技运动的影响时，它已经成为众多研究者的关注焦点。后叶催产素，即著名的“爱情荷尔蒙”，是一种由脑下垂体分泌、能促进人际关系的荷尔蒙。它能增加人类彼此的好感，特别在亲密关系中作用尤为明显。女性在生产和哺乳过程中也会大量分泌后叶催产素——它能增进母亲和婴儿之间的感情。大量研究证明，情侣在刚刚确定关系时，体内的后叶催产素含量会大幅上升。情侣间的原始吸引力促成后叶催产素的释放，后叶催产素又反过来加强和稳固彼此间的吸引力。

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