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These products claim to tone muscles and speed workout recovery. But the jury is out as to whether they’re worth the hefty price tag.

If you thought osteoporosis was only an issue for women and older men, you were wrong

The biological reasoning behind our favorite pre-race laxative

How much water you actually need to drink and how to make sure you're actually drinking it

You’re strong when you run flats but as soon as you hit a hill, you’re gasping like a fish on land. Here’s what’s going on.

If your upper-body strength leaves much to be desired, here's a bit of advice.

We know you’re curious. You should be. Boxing is a great full-body, low-impact workout. Here are a few tips for incorporating it into your fitness repertoire.

Several times now, I've come down with a sore throat and sniffles in the days following a marathon or triathlon. Am I allergic to exercise?

It's a great fitness tool—but there are other ways to use it besides swings

I've been eyeing a course record, but this summer heat is making me lethargic. Any advice on tackling the perfect ride?

It's summer! I'm doubling my mileage and already feeling the pain. What can I do, aside from cutting back or resting, to stay healthy?

Four ways to avoid a potentially dangerous inflammatory response

Help! I just signed up for my first off-road race, but I live in a concrete jungle

Jumping and "plyo" exercises boost speed and power. But they can benefit distance athletes, too.

Whenever I train or race in the heat, I always feel a strong urge to take a nap. Why, and what can I do to counter it besides loading up on caffeine?

I enjoy beer in moderation, even when training for races. But I have friends who stop drinking entirely for a month leading up to the big day. Are they on to something?

Expert tips to help you get the most out of your strength session—so you don't waste your time.

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