新科学家 | 上课时间过早可能对青少年健康有害

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This year marks the 30th anniversary of a study that sparked a global movement to change the timing of children’s school days. Published in the journal Sleep by Mary Carskadon at Brown University, Rhode Island, and her colleagues, this paper set out to answer an age-old riddle: why do teenagers stay up so late, and why is it so hard to pry them out of bed in the morning?

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