科普專欄–薯不揀單 - 深入淺出–睡眠的重要性

睡眠是動物界生物必備的生存本能。957Please respect copyright.ＰＥＮＡＮＡPoYqZcZnQI
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睡眠不足會影響學習及認知能力，亦被譽為是癲癇發作的其中一項原因。同時間亦有多方面研究證實，長期缺乏睡眠的話，最终會引致狗隻、老鼠及蒼蠅邁向死亡。957Please respect copyright.ＰＥＮＡＮＡmReBghrR2V
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（圖2）有研究指出（Ref1)，睡眠有助消除大腦裡對神經系統有潛在害處的代謝物。957Please respect copyright.ＰＥＮＡＮＡjWLjFYPJTK
β-amyloid (Aβ)就是其中之一種，是與腦部神經退化症狀有所聯繫的一種蛋白質。957Please respect copyright.ＰＥＮＡＮＡk21Du59FKu
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當處於睡眠的時候，腦部Aβ的消除速度將會比日間活動時候快足接近一倍!957Please respect copyright.ＰＥＮＡＮＡT0iCukwkaz
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以上雖是老鼠實驗的結果，但足以引證睡眠其中之一的重要性，替腦部清除日間所積聚的代謝物。957Please respect copyright.ＰＥＮＡＮＡypGsd8yjSX
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（圖3）另外，近日有科學家分析了400項0-12歲人體真實數據後（Ref2)，提出了一道重要理論。957Please respect copyright.ＰＥＮＡＮＡfiQGxyblmS
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人類在2.4歲前，睡眠是建構大腦各神經細胞連接點的重要時間。957Please respect copyright.ＰＥＮＡＮＡG6nOtS7tyr
而2.4歲打後，睡眠則主力負責維護大腦的正常運作。957Please respect copyright.ＰＥＮＡＮＡDExFs61YKi
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而事實上，在人類2-3歲的時候，其腦袋體積亦將會發展至為成人腦袋體積90%有多。957Please respect copyright.ＰＥＮＡＮＡjKtHHg7frv
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換句話說，嬰兒2-3歲前的睡眠時間正是他們發展腦部的黃金時間。957Please respect copyright.ＰＥＮＡＮＡ3SOODg6JxP
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為子女日後發展著想，我在這裡強烈呼籲各家長千萬千萬不要打擾或吵醒嬰兒們的作息!957Please respect copyright.ＰＥＮＡＮＡZ3ZkqbHDNg
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Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc957Please respect copyright.ＰＥＮＡＮＡSVrJh43XN6
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Ref1:https://science.sciencemag.org/content/342/6156/373?ijkey=96bf05dad48f9bcd57f4a14609ba6211aa35ce62&keytype2=tf_ipsecsha957Please respect copyright.ＰＥＮＡＮＡk5Pasl7nES
Ref2:https://advances.sciencemag.org/content/6/38/eaba0398957Please respect copyright.ＰＥＮＡＮＡ0oZWnfLd7j

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