The American road running record-holder talks about his eye-opening experience running the 43-mile Grand Traverse across Colorado’s Elk Mountain Range.
Take this excellent advice to heart next time you lace up your running shoes!
We caught up with the American half-marathon record holder after his recent retirement announcement.
The 33-year-old set the American record in the half marathon nine years ago this weekend.
His health has taken a toll, but he's optimistic about the future.