Not all hormones are created equal.
The Kenyan recorded the fastest half marathon debut time in history.
There's no excuse for skipping breakfast.
Next time you head to the starting line, open wide and let out a yawn.
The 27-year-old didn't even see it coming.
Captain Calway was the women's champion at the Marine Corps Marathon.
Watch this video as Kara Goucher talks about marathon training
The gesture will take place exactly one week after the Boston Marathon bombings.
A few top trail runners share their racing wisdom.