Brain scans split teen short sleepers into natural, comorbidity, and environment driven groups
Mar 11th 2026
A neuroimaging analysis of adolescent sleep insufficiency finds separable brain signatures that differentiate likely natural short sleepers from teens whose insufficient sleep is driven by psychiatric comorbidity or environmental factors, suggesting a path toward more precise diagnosis and targeted interventions.
- Neuroimaging identifies distinct structural and connectivity patterns that separate subtypes of adolescent sleep insufficiency.
- One subtype matches natural short sleepers and is consistent with a biologically shorter sleep need rather than sleep disorder.
- Other subtypes are linked to psychiatric comorbidity or adverse social and physical environments and show different brain maturation or connectivity profiles.
- Combining brain imaging with genetic and behavioral measures improves classification and could help tailor interventions.
- The results imply public health and clinical approaches should distinguish natural short sleep from modifiable insufficiency to better target prevention and treatment.