Sleep works in the brain through two separate systems: sleep drive and sleep rhythm.

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3/28/2026

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4/13/2026

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Sleep Doctor: If You Wake Up At 3AM, DO NOT Do This! - YouTube

The Diary Of A CEO and Sleep Doctor

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Related Claims

People have a genetic sleep code called their chronotype, which dictates when their brain releases hormones like melatonin, cortisol, adrenaline, and dopamine.

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