
Youngsters who go to bed earlier and sleep for longer periods have greater brain function and may perform better in tests, a study suggests.
Even 15 minutes’ more sleep leads to differences in how well tasks are performed, according to researchers.

Youngsters who go to bed earlier and sleep for longer periods have greater brain function and may perform better in tests, a study suggests.
Even 15 minutes’ more sleep leads to differences in how well tasks are performed, according to researchers.