EPISODE · Jan 27, 2026 · 16 MIN
647. 无脑生物的睡眠：探索睡眠的演化起源
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这项研究揭示了即使是缺乏大脑的原始海洋生物，如水母和海葵，也拥有与人类非常相似的睡眠行为。科学家通过对仙女水母和星点海葵的观察发现，这些生物每天会经历数小时的静息状态，这表明睡眠可能在中枢神经系统演化形成之前就已经存在。研究人员推测，这种深度休息的核心功能是为了修复神经元中的DNA损伤，从而维持细胞的健康。这些发现有力地支持了睡眠是所有神经系统的基本生物学需求这一理论，并非大脑特有的功能。通过研究这些古老物种的作息，专家们能够更深入地探索睡眠的进化起源及其对生命的保护意义。内容来源：https://www.nature.com/articles/d41586-026-00044-7
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647. 无脑生物的睡眠：探索睡眠的演化起源
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