研究称喝牛奶也能缓解压力

　　A protein found in milk is the latest treatment for stress. The protein, lactium, appears to have a calming effect on the body by lowering blood pressure and reducing levels of cortisol, a hormonereleased when the body is stressed。

　　最近，科学家在牛奶中发现了一种新的可以减缓压力的蛋白质，这种名为酪蛋白水解物的蛋白质具有镇静作用，当人体处于压力状态下时，这种蛋白质可通过降低血压、降低皮质醇(一种人处于压力下肾上腺分泌出的压力荷尔蒙)来有效缓解压力。

　　Chronicstress is linked to a range of conditions, including depression and heart disease¹. Scientists first began studying the stress-busting qualities of milk over 20 years ago, spurredon by the observation that babies become calm and settled after feeding on milk。

　　慢性压力和一定的健康状况有关，如沮丧、心脏病。科学家们从20多年前就开始研究牛奶的这种减压特质，激励科学家们这样做的原因是婴儿们喝完牛奶后就会变得平静。

　　Tests suggested that a protein - casein- played a key role。

　　试验结果显示，这种名为酪蛋白的蛋白质起了关键作用。

　　But adults, with their more mature digestivesystem, would need to drink impossibly large quantities of milk for the same benefit。

　　但是对于成年人来说，由于消化系统已经成熟，要喝大量的牛奶才可能达到这种效果。

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