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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Фото: Антон Новодережкин / ТАСС

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Now 75 and retired from full-time recording and touring, he has dusted down his guitars to take part in Selkirk Musical Theatre Group's latest show, We Will Rock You.

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Actuators are the motors which drive all sorts of machinery