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老年人多喝水对身体没有负面影响(中)

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  荷兰科学家最新公布的一项研究结果显示,对于那些身体健康的老年人来说,每天增加大约1升的液体摄入量不会对其身体产生任何负面影响。

  据路透社4月6日报道,荷兰马斯特里赫特大学的马克・斯皮格特博士及其同事在《美国老年病学协会杂志》上撰文指出,那些年纪较大的人经常会出现身体脱水的现象,其中部分原因在于其自身对于口渴的感觉可能已经变得十分迟钝了。但是,老年人也很容易处于体内含水量超标的状态,因为他们的肾脏的工作效率已经趋于下降。过多的水分存留在人体内会使身体里的钠被大量稀释,而这可能会引发非常严重的后果。

  研究人员对141名年龄在55岁到75岁之间的身体健康的老年人进行了一项研究,这些人被随机分为两部分,其中一组被建议每天比平时多喝1.5升水,而另一组则每天都会喝上一匙实为糖浆的无效对照剂。

  为搞清增加每天液体摄入量到底会给老年人带来哪些影响,研究人员对收集上来的数据进行了仔细的分析。斯皮格特说:“因为当时尚未搞清每天多喝水会对老年人的身体带来何种影响,所以我们特地对此进行了分析。尽管此前在这方面缺乏足够多的证据,但还是有很多人做出了各种各样的假设,有人声称此举会对人体带来积极影响,而另外一些人则警告说要小心身体出现水分过多的现象。”

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