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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"On top of this, Reddit's community moderators set and enforce subreddit-specific rules that can be even stricter."

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Late summer rain is causing havoc across Australia, with South Australia on flood watch, Victoria cleaning up after a downpour, and Sydney issuing a shark warning after heavy falls.