留美老師帶你每日說英文 第463期:睡眠的主要功能

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臺灣籍旅美老師今天交給我們的句子是：

Sleeping isn't lost time, or just a way to rest when all our important work is done. Instead, it's a critical function, during which your body balances and regulates its vital systems, effecting respiration and regulating everything from circulation to growth and immune response.
睡眠不是浪費時間，或只是完成重要工作後的喘息。相反的，睡眠最主要的功能是維持、調節身體重要系統的平衡。它可以影響你的呼吸、血液循環、人體生長以及免疫反應。