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:tutorial资讯

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"The Dutch are rich and they work less – but the question is, how sustainable is this?" says Nicolas Gonne, economist at the OECD. "There's only so much you can do with few workers.