雅思阅读材料：缺觉对大脑的损害等于头部受重击

　　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.

　　本尼迪克特教授还说，他的研究可以支持之前的研究，睡眠不足和阿兹海默、帕金森以及多发性硬化风险上升有关。

　　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.

　　他解释说，血液中的这些化学物质在睡眠缺乏后上升，暗示缺觉会导致脑组织损伤。

　　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经在杂志《睡眠》上发表，他补充说：“总之，我们的实验发现表明，一夜好眠对维持大脑健康来说是非常重要的。”

　　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.

　　英国三分之一人口有睡眠问题，现代人每晚平均睡眠时间是七个小时，而几十年前，差不多是九小时。

　　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.

　　一些科学家相信，不规律的睡眠可导致从头疼到心脏病等的各种疾病，不到八小时的睡眠会降低第二天的智商。