If you’re considering running your first ultramarathon, here's a complete guide to training, racing, nutrition, and gear.

Sprint workouts torch belly fat, boost metabolism, and improve insulin sensitivity for faster results. Learn how to do them ...

One twin followed a high-fat diet while the other ate high-carb. The experiment has changed what they plan to eat before ...

Ankle weights, of course. I won't lie to you - as a runner who strength trains to injury-proof her body, I've not been the ...