Study finds that because teens tend to be night owls who regularly go to bed late, they tend to be both sleepier during the day and have more trouble with self-regulation, regardless of how much sleep they actually report getting. Findings support later start times for middle and high schools.

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Study finds that because teens tend to be night owls who regularly go to bed late, they tend to be both sleepier during the day and have more trouble with self-regulation, regardless of how much sleep they actually report getting. Findings support later start times for middle and high schools.