Most people think deep sleep is just rest. It's actually when your brain takes out the trash.
Core Insight
Deep sleep is when your brain runs a cleaning cycle that may help clear waste linked to long-term brain health.
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Sleep Knowledge
As the sun sets and we retreat into our sanctuaries, the brain enters one of its most restorative phases.
The Glymphatic Wash
During deep sleep, fluid moves through the brain and helps clear metabolic waste.
Memory Consolidation
Deep sleep also helps the brain strengthen important memories while letting less useful details fade.
Deep sleep is the editor of your identity, deciding what defines you and what can be safely forgotten.
Physical Restoration
This is also when the body prioritizes repair and hormonal recovery.