結果 : what happens if a child doesn't get enough sleep
2:35

Not enough sleep may harm children’s developing brains

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What Happens if Your Child Doesn't Get Enough Sleep?

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175 回視聴 - 6 年前
1:05

What can happen if your kids don't get enough sleep

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What staying up all night does to your brain - Anna Rothschild

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8 時間の睡眠は必要ではない理由を医師が解説します。

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10:03

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