“I run with a credit card and a cell phone, so when there is not a 7-Eleven aroun…” — Dean Karnazes

Any goal worth achieving involves an element of risk.

I have my whole office set-up at waist level; I don't sit at all during the day. Sitting, to me, is the devil.

I do a lot of marathons as training runs. If I'm somewhere and there's a marathon, I'll sign up and just go run it.

To an extreme athlete, there's a certain appeal to doing extreme things - seeking the most extreme physical challenges in some of the most extreme climates in the world. Testing and expanding the limits of human endurance is kind of my thing.