More social jetlag is linked to lower knowledge-based thinking and school performance in adolescents

Data from 6,890 adolescents indicates that later chronotype and greater social jetlag are associated with poorer cognitive and academic performance.

• Later chronotype is linked to increased daytime sleepiness and insufficient sleep.
• Greater social jetlag is correlated with lower self-reported academic grades.
• Both later chronotype and greater social jetlag predicted poorer cognitive performance measures.
• The observed effects are small, suggesting a nuanced relationship.
• Aligning school schedules with students' optimal sleep-wake times may enhance academic performance.

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