Sleep and Cellular Repair: What Science Says About Rest and Recovery

 Sleep isn’t just rest—it’s when your body performs critical repair and restoration at the cellular level.

Sections:

1. The Sleep Cycle

   • NREM: Tissue rebuild, immune function

   • REM: Brain consolidation, emotional processing

2. Cellular Repair Mechanisms

   • Growth hormone release for muscle and bone

   • DNA repair and oxidative damage reversal

   • Immune cell regeneration

3. Effects of Chronic Sleep Deprivation
   Raises cortisol, blood sugar, inflammation; reduces insulin sensitivity; impairs memory and concentration.

4. Tips for Better Sleep
   • Maintain a consistent sleep schedule
   • Keep your bedroom cool, dark, and quiet
   • Avoid screens and stimulants 1 hr before bed