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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Comparison between Knoll’s and Yliluoma’s algorithms using a 16-colour irregular palette. Left to right: Knoll, Yliluoma. The ‘Yliluoma’s ordered dithering algorithm 2‘ variant was used.