Ryan Hall explains why he frequently leaves the U.S. to train in Ethiopia.
In the African nation, running is more of a social activity.
Tirunesh Dibaba gets profiled by CNN.
Get an inside look at the running culture in Ethiopia.
Michael Crawley shares some insight into his experiences living in training in Ethiopia.
He improved it by nearly a minute.
The Olympic bronze medalist had problems with his ankle.
She says she's fitter than she was last year.
He hopes to heal in time for the 5000m final this Sunday.
Arch rival Ethiopia already lags well behind in the medal count.