In this Friday, Nov. 17, 2017, photo, Seth Weston, a ninth grader at Hempfield Area High School, waits for the bus at Frick and Corbett Avenues in Hempfield Township, Pa. School districts in and around Pittsburgh, including some whose first bell rings at 7 a.m., are evaluating daily schedules as research and day-to-day experience make it increasingly clear that later start times could benefit students' mental health and academic success. (Dan Speicher/Pittsburgh Tribune-Review via AP)
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