Limitless With Chris Hemsworth S01e03 Fasting.mp4 May 2026

To activate autophagy , a cellular "recycling" process where the body clears out damaged cells to regenerate newer, healthier ones.

According to the experts on the show, periodic fasting can help "future-proof" the body against age-related diseases. To integrate these benefits into a sustainable lifestyle, the episode suggests several strategies: Limitless with Chris Hemsworth S01E03 Fasting.mp4

A longer multi-day fast, similar to the one Chris performed, once a year. Where to Watch To activate autophagy , a cellular "recycling" process

In the third episode of National Geographic’s , titled "Fasting," Chris explores how abstaining from food can trigger the body’s internal anti-aging mechanisms. Guided by longevity expert Dr. Peter Attia , Hemsworth pushes his physical and mental limits to understand the long-term benefits of caloric restriction. The Challenge: A 4-Day Fast To activate autophagy