Is there evidence that delaying school start times will be associated with positive outcomes?

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Yes. School start times of 8:30 a.m. or later are associated with:

  • Increased sleep duration
  • Less sleepiness
  • Improved attendance
  • Less tardiness
  • Less falling asleep in class
  • Fewer depressive symptoms
  • Decreased health center visits
  • Fewer motor vehicle crashes
  • Though data is limited, some evidence of increase in GPAs and SATs (with no adverse impact on academics)