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熬夜,正让无数人走在变傻的边缘

□ 时间:2020-1-12 □ 来源: 环球科学


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    摘要:Sleep is essential for both cognition and maintenance of healthy brain function. Slow waves in neural activity contribute to memory consolidation, whereas cerebrospinal fluid (CSF) clears metabolic waste products from the brain. Whether these two processes are related is not known. We used accelerated neuroimaging to measure physiological and neural dynamics in the human brain. We discovered a coherent pattern of oscillating electrophysiological, hemodynamic, and CSF dynamics that appears during non–rapid eye movement sleep. Neural slow waves are followed by hemodynamic oscillations, which in turn are coupled to CSF flow. These results demonstrate that the sleeping brain exhibits waves of CSF flow on a macroscopic scale, and these CSF dynamics are interlinked with neural and hemodynamic rhythms.
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    睡眠质量决定着白天的精神和工作效率,对此我们都深有体会。而最新的研究告诉我们,睡眠不足不仅影响工作,还会让我们变傻。这项发表在《科学》上的研究发现,慢波睡眠会与大脑清除废物的过程同步进行。这意味着缺乏深度睡眠的人,大脑中会积累大量毒素蛋白,进而导致痴呆等神经疾病。
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    ★ 大脑的排污系统

    几乎所有动物都需要依靠睡眠来维持生命活动的正常运转。因此,毫无疑问,睡眠对于高级的认知过程和大脑的基础生理过程有重要作用。一旦缺乏睡眠,人会明

资讯作者: 杨心舟 源信息发布时间: 2019/11/9 编辑:金阳
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