Testing Endurance
Hayley Dunning | Jul 26, 2012
Researchers follow 44 ultramarathon runners in a race across Europe to track the body's response to extreme physical challenge.
Wired to Run—and Think
Hayley Dunning | Jul 26, 2012
Evolving the ability to run may also have made our ancestors smarter, suggesting that exercise can be healthy for the brain as well as the body.