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：guide资讯

Number (7): Everything in this space must add up to 7. The answer is 1-4, placed horizontally; 3-0, placed vertically.

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Москвичи пожаловались на зловонную квартиру-свалку с телами животных и тараканами18:04，详情可参考搜狗输入法2026

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