Cardio
7 Winter Running Tips From Professional Marathoners

Elite runners and pro coaches share their top strategies for training through winter's toughest conditions.

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Why You Should Join a Walking Group

It's not just for your grandparents! A new study shows walking with friends may have surprising benefits.

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WALKINGarticle
10 Thrilling Races to Travel the World

Get that passport ready! From Paris to the Great Wall of China, these international marathons are worth training (and traveling!) for.

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MARATHONSslide show
The Awkward Winter Running Problem No One Addresses

Ever wonder why your glutes stay cold during a winter run? We have the answer, plus awesome running gear that can help

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RUNNINGarticle
Nike Launches Self-Lacing Shoes (Plus 7 More Futuristic Sneakers)

That’s right, the sneaker giant has made Back to the Future shoes a reality!

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What's Worse: Obesity or Inactivity?

One of these doubles your risk of dying early. Find out which one—and what you can do about it

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Why You Should Use a GPS Sports Watch

Activity trackers are getting a run for their money from these new fitness gadgets.

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The Fastest Possible Marathon Times, According to Science

It's the battle of the sexes: men may run faster, but women run harder.

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MARATHONSarticle
Fitness Technology Is Owning CES

Technology that can make you ride better, track smarter, and look sharper

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