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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Nature, Published online: 24 February 2026; doi:10.1038/d41586-026-00593-x

"That temperature is pretty nice here, really," he says. "Minus five is as warm as it gets. It can get down to about -40, but you're looking at about -20 being the average."

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Two tunnels, each 1.8 miles (3km) long, will bring in 120,000 litres of water every second to Hinkley's cooling system

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