A new EPA proposal attempts to limit toxic emissions of air pollutants from coal and oil-fired power plants.

Turn your world upside-down by practicing handstands, a whole-body move.

A regular marathon will sound like an easy warm-up compared to these crazy yet compelling endurance races.

An expert conditioning coach offers down-and-dirty advice on preparing your body for an obstacle race.

American runners are getting slower, and it's not because more women are running now then ever before.

Study finds you may be better off moving your workout indoors.

A new study buries the concept of "fat but fit," and finds that obesity is more dangerous than a lack of fitness.

Two new studies find that hot yoga may help to reduce stress, anxiety and emotional eating.

Running and walking may have similar benefits, but are there times when is walking better than running?

If you want to try a triathlon, here's what you need to know about the event that combines swimming, cycling and running. Experts Erin Beresini weighs in.

Why aren't women counted in most exercise studies? Their periods tend to mess up the data.

A new study reveals that a lean, fit body equals happy teeth and gums.

As the 'Mad Pooper' terrorizes Colorado Springs, many are asking why runners are so obsessed with poop anyhow.

Kids make the best workout buddies. Here's how adults can tailor their exercise routines to a child's abilities.

Rhabdomyolysis is rare, but if your workouts cause extreme soreness or swelling, check with your doctor.

Residents noticed 95-year-old Harvey Djerf struggling on his daily walks, so they came up with a kind solution.

Dogs and cats can't help themselves when you unroll the yoga mat. They either participate or just get in the way.

Adding walking poles to your daily jaunt is an excellent way to boost your calorie burn, and they may even help prevent chronic pain with aging.

NBA star LeBron James may have just launched a new fitness revolution with his use of "yoga bubbles."

Here's why you should squat instead of sitting or standing throughout the day.

A study in the Lancet looked at over-60 walkers, and those who worked on a busy London street didn't fare as well as the park walkers.

Yoga nidra, also called sleep yoga, is a restorative style of yoga that looks (and feels) more like taking a nap than exercise.

New research out of Australia unlocks clues about how your body responds to exercise at the cellular level.

Study finds bananas do more than help you recover after exercise. They also help reduce pain and swelling.

Competitors from around the world line up on an Arctic ice floe to tackle one of the world's most difficult 26.2-mile races.

New survey finds that a good outfit could be the key to fitness success.

In the Netherlands, men over 65 on e-bikes are causing a big spike in the cycling death rate. And the Dutch are ahead of the game on all things biking.

Here's the secret to getting that smell out of your high-tech exercise wear.

Your body clock influences what time of day you burn more calories.

Go ahead and have a seat. New research says it's not the sitting that's the problem.

Weight lifting does more than just pump you up; it can increase your chances for survival.

From your heart to your head, here's why you should lace up your sneakers and walk.

Knowing how to measure metabolic equivalents is an easy way to sneak in exercise and make sure all your movements count.

New study finds several short bursts of exercise are just as effective as one long one.

Defying stereotypes, teenager Vilde Westeng aims to be the best halling dancer.

The benefits of cumulative exercise are well-documented. Here's how to get your exercise, 10 minutes at a time.

Are you new to stretching? Here are some tips on how to improve flexibility and information about the kinds of stretching you should be doing.

There's no one-size-fits-all solution for raising HDL cholesterol levels, but it can be done — and understanding inflammation is an important step.

Researchers looked at walkers and runners with bent and straight arms to find out.

Eating less is more important than exercise if you want to lose weight.

These half-dozen exercises will help you shed pounds if obesity is in your genes.

There are many styles of yoga to choose from, so if you’re new to yoga, it might be confusing to know the best place to start.

Running doesn't have to be a struggle. Here's how to become a runner for life.

Everyone gets winded while climbing stairs, but sometimes it's a little more serious.

The fitter you are, the stronger your brain will be as you age, which can help increase joy and improve cognitive function.

Valley fever, or coccidioidomycosis, is a potentially deadly fungal infection that has been called California's "silent epidemic."

Climatologist documents Greenland's warming conditions with a photo of sled dogs splashing in meltwater on top of sea ice.

The Amazon rainforest fires have been burning for 3 weeks, and some are wondering why Brazil's crisis isn't getting more attention.

This is what the skies over Beaumont, Texas, look like whenever one of the local refineries loses power.

New study finds that air pollution limits led to 10 percent more rainfall for Atlanta in the 1970s and 1980s.