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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They had been living and working aboard the ISS since August and were expected to stay until February. The crew returned on January 15, which was a decision made by NASA's chief health and medical officer. Once the crew had landed, administrator Jared Isaacman said it was a "serious situation" but didn't go into any detail.

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"I used to binge-watch every single quiz show you could think of. So I've always wanted to go on a quiz show, and honestly the experience was really great.

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Treating these cancers earlier is more likely to benefit those men and outweigh the potential harm from unnecessary treatment, compared to men in the general population, the experts said.