Drowsy Driving and Teen Motor Vehicle Crashes: Impact of Changing School Start Times

Adolescents walking down a bright school hallway

Recent findings suggest that with later start times, students obtain more sleep, and in turn have improved attention and vigilance, which are critical for new drivers. According to this study, later high school start times were associated with a 33% reduction in drowsy driving among teens, as well as a significant reduction in motor vehicle crashes.

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