Night owls' poor sleep habits can hurt grades

By Kathleen Doheny HealthDay of USA Today
June 18, 2011

Students who are night owls have worse grades in high school and the beginning years of college, research has shown. 

At the end of the freshman year, the night owls' grade point average (GPA) was 2.84, just below a B average, the study authors reported. The [morning] larks and regular robins had an average GPA of 3.18, Peszka noted.

"It's only a third of a letter grade," she said of the difference. "But a third of a letter grade could, particularly at that place on the scale of GPA, be critical to keeping a scholarship or staying on a sports scholarship or keeping your parents satisfied."

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