Later teen bedtimes tied to school problems and distress

Adolescents perform worse in school and to have greater emotional distress than peers who go to bed earlier on school nights, according to a new U.S. study published in the Journal of Adolescent Health.

Researchers said that if teens' sleep patterns are in conflict with their natural circadian rhythms, then that also has repercussions on cognitive function and emotional regulation as well as potential health consequences.
Experts advise parents to set sleep rules so that teens get about nine hours of sleep every night, with bedtimes that are similar each night, including on the weekends.