[Cabrera:] In today's "Fit Nation," meet the man who holds the Guinness World Record for the farthest distance ever traveled on a skateboard in 24 hours. Here's Dr. Sanjay Gupta.
[Dr. Sanjay Gupta, Cnn Chief Medical Correspondent:] Andrew Andras is a giant in the small but competitive world of long- distance skating.
[Andrew Andras, Long-distance Skating Competition Competitor:] You can kind of say it's between, say, a cyclist and a runner.
[Gupta:] At 39 years old, Andras is the ultra skate world record holder, skating over 300 miles in just 24 hours.
[Andras:] There's no books out there on how to skateboard for 24 hours. So it was a lot of figuring out, how to feed the body and your training program.
[Gupta:] Andras is a firefighter paramedic in Miami-Dade.
[Andras:] It's a very physical, demanding job. It's a very stressful job and we need forms of stress relief from that. Being out on the long board and racing was my answer. I love the competition, the sport and pushing yourself past the limit that you didn't think you could do mentally or physically. The human spirit wants to be challenged.