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Why We Sleep

6 phrases with native audio and pronunciation. Tap play to listen — everything on this page is free to read.

  1. 人間は毎日十分な睡眠が必要です。

    Humans need sufficient sleep every day.

  2. 睡眠中に、私たちの脳と体は重要な仕事をしています。

    During sleep, our brain and body are doing important work.

  3. 脳は一日の記憶を整理して、大切な情報を保存します。

    The brain organizes the day's memories and stores important information.

  4. また、体は睡眠中に疲れを回復させます。

    Also, the body recovers from fatigue during sleep.

  5. 十分な睡眠がないと、集中力が低下し、気分も悪くなります。

    Without sufficient sleep, concentration decreases and mood worsens.

  6. だから、毎晩七時間から九時間の睡眠を取ることが大切です。

    Therefore, it is important to get 7 to 9 hours of sleep every night.

Key vocabulary

  1. 睡眠

    sleep

  2. 脳

    brain

  3. 記憶

    memory

  4. 集中力

    concentration, ability to focus

  5. 疲れ

    fatigue, tiredness

  6. 回復

    recovery; recuperation

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