Why sleep is an EF lever

The prefrontal cortex — the seat of working memory, inhibition, and planning — is the first system to degrade under sleep debt. Even mild chronic shortfall (45–60 minutes a night for two weeks) measurably reduces sustained attention, emotional regulation, and decision quality. People often work on time-management strategies for months before realizing the underlying constraint is biological, not behavioral.

Use this quiz when: EF strategies you know should work keep failing, you wake unrefreshed, or you suspect a hidden cost from late nights, screens, caffeine timing, or inconsistent schedules.

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