64: The Hardest Human Alive, Ultra Runner

Navy SEAL and endurance athlete, David Goggins, joins the Finding Mastery podcast to share his quest to become the hardest human alive.

About the Paleo Running Momma

Insane world of 'toughest man alive' David Goggins who ran 101 miles in just 19hrs - as his brutal workouts are revealed

David Goggins Biography & News, Runner

The World's Hardest Endurance Race

Why Older Runners Are Ultrarunners - The New York Times

After Olympic Marathon Trials, Athletes Question How Officials Handled Heat and Hospitality

The 100 Hardest Video Game Levels, Ranked

Terry Fox - Wikipedia

World's Toughest Emergency Blankets [4-Pack] Extra-Thick Thermal Mylar Foil Space Blanket Waterproof Ultralight Outdoor Survival Gear For Hiking, Camping, Running, Emergency, First Aid Kits [Camo] : Sports & Outdoors

World's Toughest Races: These Are the Hardest Races in the World

Last Man Standing Ultramarathon

World's Toughest Races: These Are the Hardest Races in the World

Dean Karnazes: The Man Who Can Run Forever

76-year-old prepared to run the world's toughest ultramarathon