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This guy will run 26.2 on the International Space Station treadmill.
New study shows benefits of higher anaerobic fitness levels.
Take it to the streets with these expert tips from a Nike+ Run Club coach.
New study says all you need is a little paper tape.
How do you sweat: "typical," "low-salt," or "salty"?
Comedian Eddie Izzard just finished his 707th mile for charity.
The danger of over-hydrating during an endurance race.
200 athletes raced up the 1,576 steps on Wednesday.