2014.04.17【英译中】 Why Do We Sleep?

maggiewujia (呉 Felson)
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发表于:2014-04-29 03:18 [只看楼主] [划词开启]
Why Do We Sleep? 我们为什么要睡觉?

Dear A Moment of Science, 亲爱的《科学一刻》栏目组,

Why do we sleep? I know this question has been debated by scientists and philosophers for centuries, but are there any hard and fast answers? 我们为什么要睡觉呢?这个问题已经被科学家和哲学家争论了几个世纪了,但是有没有标准答案呢?

Good question! First, it’s true that scientists have long pondered the mystery of sleep why we do it and why it’s necessary. We know that going without sleep for too long can seriously damage health, so there’s good reason to believe that getting enough sleep is important for our well-being.好问题!确实,科学家们一直以来都想要揭秘为什么我们每天都需要睡觉。我们都知道,长时间不睡觉的话会对身体健康造成严重的危害,所以我们有理由相信充足的睡眠对我们的幸福很重要。

But exactly how and why that’s the case is still an open question. Some research, though, may shed a little light on the problem. For instance, scientists at the University of Rochester Medical Center in New York did a study with mice, and found that during sleep their brains flush out toxins that accumulate during the day.但是到底为什么会这样现在仍然是个谜。然而一些研究可能对这个问题有些许的解答。例如,纽约洛契斯特医学中心大学用老鼠进行了试验,发现老鼠在睡觉时,大脑会排出白天积累的毒素。

More specifically, the study found that sleep sort of changes the brain’s cellular structure. When the mice were asleep or anesthetized, the researchers found that there was more space between their brain cells, allowing a sort of brain plumbing apparatus called the glymphatic system to open wide and allow fluid to flow quickly through the brain.
更确切的说,这项研究发现了睡眠从某种程度上改变了大脑的细胞结构。当老鼠睡觉或被麻醉时,研究人员发现脑细胞之间的空隙变大,使得一种叫做胶状淋巴系统的脑管道装置变宽,让液体能够更快的流过大脑。

Other studies have shown that toxic molecules build up in the space between brain cells. Researchers at the University of Rochester found that those molecules vanished faster from the brain when the mice were asleep.其他的研究还发现有毒物质会积累在脑细胞与脑细胞之间。洛契斯特大学的研究人员还发现,这些有毒物质在老鼠睡着时会在脑中消失的更快。

So what does this mean? Well, it could give scientists new ways to study and potentially treat brain disorders like Alzheimer’s by targeting the glymphatic system and helping it better flush away brain toxins.那么这意味着什么呢?科学家这样可以以一种新的方法通过使胶状淋巴系统更好的排出毒素来研究并治疗跟脑紊乱相关的疾病,如阿尔茨海默病等。
分类: 英语

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