Adolescents who sleep longer can perform better at cognitive tasks
- A study tracked sleep patterns and brain function in over 4,000 US adolescents aged 9 to 14.
- Researchers used objective data from wearable devices, offering more accuracy than typical self-reports.
- Adolescents who slept longer or had earlier bedtimes demonstrated healthier brain structure and better cognitive performance.
- Professor Sahakian noted that even a 15-minute sleep difference affected brain structure, activity, and task performance.
- The findings suggest even small increases in sleep benefit adolescent brain health, although most teens sleep less than recommended.
22 Articles
22 Articles

Research reveals teens who sleep longer have better brain function
Teens who sleep for longer – and from an earlier bedtime – tend to have improved brain function and perform better at cognitive tests.
Youngsters who sleep longer may perform better in tests, study suggests
The group that slept the longest performed the best, the research showed. 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. The study, published in Cell Reports, used data from the Adolescent Brain Cognitive Development (ABCD) Study, a long-term stud…
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