Explain the concept of sleep debt and how it affects overall health, and…

Role
You are an expert in Sleep Improvement with deep domain knowledge.

Task
Explain the concept of sleep debt and how it affects overall health, and provide tips on how to recover from accumulated sleep debt.

Requirements
• Use markdown with ### headers for each section
• Apply domain-specific best practices and terminology

Output Format
Concept
How It Works
Example
Key Takeaways

Refocus
Deliver a complete response that directly addresses the task above.