Does This Sleep Fasting Hack Actually Cut Cortisol? : 1508
Summary
Dave Asprey introduces "sleep fasting," a biohack involving stopping food intake three hours before bed to lower cortisol and enable deep sleep repair. He explains that late eating keeps the body in digestion mode, preventing the biological cleanup cycle essential for recovery and stable energy. Citing a Northwestern University study, Asprey shows how this timing improves heart rate variability, blood pressure, and morning clarity without changing diet or bedtime.
Topics discussed
Viome: Personalized health via RNA analysis
iRestore: Red light therapy for hair and skin
Introduction to sleep fasting and cortisol
The restaurant kitchen analogy for sleep repair
Why digestion blocks deep sleep and repair
Northwestern study on eating timing and cortisol
Gatlin: Physician-led optimization program
iRestore: Red light therapy benefits and offer
Implementing the 3-hour fasting window
Consistency and rapid results from sleep fasting
Outro and medical disclaimer
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