Start school later, sleep longer, learn better: New study shows that flexible school start times can be an effective and practical approach to reducing chronic sleep deprivation and improving adolescents’ mental health and academic performance.

· · 来源：dev资讯

Варвара Кошечкина (редактор отдела оперативной информации)

人気記事ランキング直近24時間（1時間ごとに更新。5分ごとはこちら）。heLLoword翻译官方下载对此有专业解读

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中国宣布自3月1日起

Мерц резко сменил риторику во время встречи в Китае09:25