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.

The episode captures the intense psychological and physical toll of hunger, with Chris reporting significant irritability and poor sleep during the process.

The full episode is available for streaming on several platforms: Disney+ (Global) Hotstar (India) Apple TV Limitless with Chris Hemsworth S01E03 Fasting.mp4

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

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: To activate autophagy , a cellular "recycling" process

Avoid eating before midday at least three times a week (a form of time-restricted feeding).

After four days without food, Chris must test his focus and physical endurance by spearfishing off the Great Barrier Reef to catch his first meal. Key Longevity Takeaways Guided by longevity expert Dr

Consider going 24 hours without food once a month.