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If you went to high school in the US, you may recall early morning extracurriculars, sleeping through first period algebra, or bleary-eyed late-night study sessions (as opposed to other wide-awake “study sessions” we told our parents we were having). As an adult, you might wonder if there’s a better time to explore Shakespeare than at 8 am, or expand a Taylor series right after you collapsed into your chair, half-asleep from your sunrise bus ride.
As it turns out, early school start times for US high schools are built on a shaky scientific foundation, as journalist and parent Lisa Lewis lays out in her new book, The Sleep-Deprived Teen. She…