New York, NY - Dean Karnazes is a graduate of the University of San Francisco's McLaren School of Business and Management and has been named on of the world's "Top 100 Most Influential People" by Time Magazine. He has completed 50 marathons in fifty days and you can read all about it in his book "50/50" and try to keep up with him on his Runner's World Blog. For more information visithttp://ultramarathon.com. 

A special thanks to GYM SOURCE for providing Dean's treadmill!

He will be appearing on LIVE with Regis and Kelly