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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The new system is designed to give "a real benefit" to low-income households

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They still dominate an industry that is now estimated to be worth billions across the globe. But increasingly, South Korean entertainment is making a play for what analysts believe is a booming market. Now, artificial intelligence (AI) is poking its head round the corner, promising lower costs and more opportunities.