If you want to run, run a mile. If you want to experience a different life, run a marathon. If you want to talk to God, run an ultra.

We chat with Dean Karnazes about everything from his fueling regimen, to how he stays motivated, to his invention of the pizzarrito.

Dean Karnazes

Desperation is not a plan—and more hard-earned wisdom from a lifetime of long-distance running

Men's Health ranked 63 of the fittest men of all time, from celebrities like The Rock and Jean-Claude Van Damme to athletes like Michael Jordan.

by acclaimed endurance athlete and New York Times best-selling author “Ultramarathon Man” Dean Karnazes It was nearing 11p.m. and I was famished. Unfortunat ...

WTF Fun Facts is updated daily with interesting & funny random facts. We post about health, celebs/people, places, animals, history information and much more. New facts all day - every day!

A man named Dean Karnazes has a physiological advantage in that he doesn't seem to have a lactate threshold and thus he was able to run 350 miles in under 81 hours without sleep.

Let’s toast to the new colors for Fitbit Surge with a tasty smoothie from Dean Karnazes.

To interview ultrarunner Dean Karnazes for our January cover story, “This Life Goes to 11,” managing editor Katie Arnold joined him for a “short run.” Four hours later, she’d completed her first marathon. Here, read extended excerpts from their conversation.