How exercise strengthens the brain.
This Irishman just ran his first trail ultra, and it sounds like's addicted already.
Meb is racing in Skechers. Really? Sounds sketchy.
Dean Karnazes is continuing his speaking tour and inspiring new runners.
How do forefoot runners walk around the house? Interesting question.
Karl Meltzer learns what the back of the pack looks like...And he's impressed.
Looks like Geoffrey Mutai will be running the NYC Marathon. This should be awesome.