Schmidt, S. (2019, February 05). Later school starts linked to better teen grades. Retrieved March 13, 2019.

After Seattle high schools pushed back their start times from 7:50 a.m. to 8:45 a.m., sophomores started getting better grades, according to a study. Researchers had students wear activity trackers, which revealed the teenagers were getting more sleep “closer to their natural sleep pattern on weekends,” said one of the lead study authors, Gideon Dunster, who also is a graduate student at the University of Washington.