← Home
The Human Upgrade · July 26, 2026 · 00:10:21

Does This Sleep Fasting Hack Actually Cut Cortisol? : 1508

In this solo episode, Dave Asprey explains the concept of "sleep fasting" — avoiding food within three hours of bedtime. He argues that eating too close to sleep keeps the digestive system active, which hinders the natural cortisol dip necessary for deep cellular repair. This simple three-hour pre-bed food cutoff can significantly improve sleep quality, energy, and overall recovery.

This summary was generated from show notes and public descriptions, not from a full transcript review. Details may contain inaccuracies.

Editorial

Sleep Fasting: 3-Hour Pre-Bed Food Cutoff
Eating within three hours of bedtime disrupts the cortisol dip needed for deep overnight repair, so a simple three-hour pre-bed food cutoff can dramatically improve sleep quality, energy, and recovery.
Was this useful?