2017考研英語(yǔ)閱讀材料：人類進(jìn)化結(jié)果睡眠更少,更好

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睡眠對(duì)一個(gè)人來(lái)說(shuō)是很重要的，但更重要的是睡眠質(zhì)量，人類較別的物種來(lái)說(shuō)更注重睡眠質(zhì)量，睡得更少。下面我們大家一起來(lái)看一下跨考網(wǎng)的小編為大家整理的關(guān)于2017考研英語(yǔ)閱讀材料：人類進(jìn)化結(jié)果睡眠更少,更好的一些資料，幫助大家更好的做好考研英語(yǔ)的復(fù)習(xí)備考工作。

人類的睡眠很有效，這也是為什么我們睡得更少，一天只睡7個(gè)小時(shí)而不是離我們最近的物種所需的多達(dá)14個(gè)小時(shí)。

Humans are efficient sleepers, and that's why we need less sleep - seven hours - compared to as much as 14 hours a day for our closest animal relatives.

美國(guó)杜克大學(xué)的研究人員建立了一個(gè)幾百種哺乳動(dòng)物睡眠規(guī)律的數(shù)據(jù)庫(kù)，其中包括21種靈長(zhǎng)類動(dòng)物。他們發(fā)現(xiàn)，人類睡眠時(shí)間不僅比黑猩猩、獼猴和狐猴要少，而且更多時(shí)間是沉睡在更深、更有恢復(fù)作用的階段。

Researchers at Duke University compiled a database of sleep patterns of hundreds of mammals, including 21 primate species. They found that not only do humans need less sleep than chimps, macaques and lemurs, we spend a greater percentage of our slumber in the deeper,more restorative stages of sleep.

在這個(gè)有電燈和通宵工作的時(shí)代這也許并不令人驚訝。但是這份報(bào)告的共同作者大衛(wèi)•薩姆森說(shuō)，睡眠的這種變化早在我們發(fā)明人工照明之前就開始了。他將這一變化追溯到人類祖先離開樹巢開始睡在地上的時(shí)候。

That might not seem surprising in this age of electric lights and round-the-clock activities, but co-author David Samson says this shift began long before we developed artificial lighting. He traces it back to when human ancestors left their nests in the trees for sleeping on the ground.

由于睡覺時(shí)需要靠近火和更大的人群保持溫暖和安全，這可能使得早期人類盡可能在最短時(shí)間內(nèi)睡得最好。薩姆森提到這也留給人類更多的時(shí)間做其他活動(dòng)，比如學(xué)習(xí)新技能。

The need to sleep near fire and in larger groups for warmth and safety could have allowed these early humans to get the most out of their sleep in the shortest possible time. He notes that also left more time for other activities, like learning new skills.

通過(guò)上面跨考網(wǎng)的小編為大家整理的關(guān)于2017考研英語(yǔ)閱讀材料：人類進(jìn)化結(jié)果睡眠更少,更好的一些資料，大家就認(rèn)識(shí)到這也是人類與其他的哺乳動(dòng)物的區(qū)別所在。