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.

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For ordinary Afghans, reeling under a severe crisis of hunger and poverty, and living under the Taliban government's stringent restrictions, the one positive since 2021 was that after four decades of war, they didn't have to worry about bombs falling on them and their families.

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因为每一轮技术浪潮真正成熟之前,最先膨胀的往往不是产业规模,而是财富叙事。问题在于,故事成立,并不代表生意成立。