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Should middle and high schools start after 8:30 a.m.? - The Korea Times

Click here for more articles by Kormedi.com. As adolescents go through puberty, the timing of melatonin release — the hormone that promotes sleep —...

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giovedì 3 settembre 2026·koreatimes.co.kr
Should middle and high schools start after 8:30 a.m.? - The Korea Times
Click here for more articles by Kormedi.com. As adolescents go through puberty, the timing of melatonin release — the hormone that promotes sleep —...