網(wǎng)上學(xué)習(xí)雅思

　Ever feel like you’ve been hit on the head after a bad night’s sleep? According to scientists, the thought isn’t as far-fetched as it seems.

　　如果晚上沒睡好，第二天會(huì)不會(huì)有種撞過頭的感覺?據(jù)科學(xué)家研究，這種想法和實(shí)際情況相差不遠(yuǎn)。

　　A study found going without sleep for just one night causes changes in the brain similar to those that occur after a blow to the head.

　　一項(xiàng)研究發(fā)現(xiàn)，即使只通宵一晚，對(duì)大腦造成的損傷足以抵得上對(duì)頭部的一次重?fù)簟?/p>

　　The researchers said the healthy young men examined in the study showed a spike in the same chemicals which indicate brain damage.

　　研究人員說，研究中接受檢查的健康年輕人顯示出一種會(huì)導(dǎo)致腦損傷的化學(xué)物質(zhì)劇增。

　　Professor Christian Benedict, of Uppsala University, Sweden, explained that the chemcials NSE and S-100B are biomarkers for brain damage, such as concussion.

　　瑞典烏普薩拉大學(xué)克里斯蒂安·本尼迪克特教授解釋說，化學(xué)物質(zhì)NSE和S-100B是腦損傷(比如腦震蕩)的生物標(biāo)記。

　　He said: ‘What we found was their levels in the blood rose in the group that went without sleep for a night. This was not to the extent that would happen after a head injury, for instance, but it was still significant.

　　他說：“我們發(fā)現(xiàn)的是在一晚沒睡的人群中，NSE和S-100B在血液中含量上升了。這雖然還不到一次頭部外傷的程度，不過也很值得注意了?！?/p>

　　‘During sleep, the brain cleans itself of toxic substances and NSE and S-100B increase in response to these substances.’

　　“大腦通過睡眠來清除自身的有毒物質(zhì)，NSE和S-100B則對(duì)這些物質(zhì)做出反應(yīng)”。

　　He said the findings back up previous research showing how the brain uses sleep to cleanse itself.

　　他說這項(xiàng)研究支持了之前的研究結(jié)果，即大腦怎樣用睡眠來自我凈化。

　　Professor Benedict also said his study could support previous studies which linked a lack of sleep with increased risk of Alzheimer’s, Parkinson’s and multiple sclerosis.

　　本尼迪克特教授還說，他的研究可以支持之前的研究，睡眠不足和阿茲海默、帕金森以及多發(fā)性硬化風(fēng)險(xiǎn)上升有關(guān)。

　　The rise of the chemicals in the blood after sleep loss may suggest not getting enough sleep is conducive to a loss of brain tissue, he explained.

　　他解釋說，血液中的這些化學(xué)物質(zhì)在睡眠缺乏后上升，暗示缺覺會(huì)導(dǎo)致腦組織損傷。

　　Professor Benedict, whose study is published in the journal Sleep, added: ‘In conclusion, the findings of our trial indicate a good night’s sleep may be critical for maintaining brain health.’

　　本尼迪克特教授的研究已經(jīng)在雜志《睡眠》上發(fā)表，他補(bǔ)充說：“總之，我們的實(shí)驗(yàn)發(fā)現(xiàn)表明，一夜好眠對(duì)維持大腦健康來說是非常重要的。”

　　A third of the UK population suffer from sleep-related problems, while the average person now sleeps for only seven hours a night, compared with almost nine a few decades ago.

　　英國(guó)三分之一人口有睡眠問題，現(xiàn)代人每晚平均睡眠時(shí)間是七個(gè)小時(shí)，而幾十年前，差不多是九小時(shí)。

　　Many scientists believe irregular sleeping patterns lead to illnesses ranging from aches and pains to heart disease, while less than eight hours’ sleep a night can lower the IQ the next day.

　　一些科學(xué)家相信，不規(guī)律的睡眠可導(dǎo)致從頭疼到心臟病等的各種疾病，不到八小時(shí)的睡眠會(huì)降低第二天的智商。