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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"Every box has a surprise," Machin said as she unwrapped perhaps the most bizarre item here, thought to be from the 19th Century: a set of lower gold dentures found at St Mary's Old Church in Stoke Mandeville.

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