For a man who has run over 100 marathons at least 100 miles long each and climbed to the top of all the seven summits of the world, it's hard to believe Marshall Ulrich was a bit of a coach potatoes until he was almost 30.

On his 32nd birthday, Roy Pirrung started running to lose weight and quit smoking. Nearly 30 years later, he's still running and shattering world records.