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For every workout you do, startup Charity Miles makes a donation to a philanthropic cause of your choice.

Runners who do intense workouts on no carbs tend to experience weakness, fatigue, and poor performance. But a new strategy called “sleeping low” might give athletes the same edge—without the suffering.

Gear to help you focus on your surroundings, not your blisters

The Olympic runner and his peers weigh in

Ready to race? Check out these 20 events, carefully curated to provide intrepid newbie skiers, rock climbers, and trail runners a thrilling and welcoming competitive experience.

This plus other recent sensationalist fitness headlines have made us wonder where all the sane people have gone.

With pro-marijuana legislation sweeping the nation, it's time to ask this very serious question.

Tips, gear, and goals to make the cold less torturous