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You'll want to take note of these errors before your next workout

This unlikely combination may just improve your flexibility and performance

It’s completely normal

New data finds that endurance- or speed-oriented muscle fibers don’t determine how you respond to strength training

Collin Chartier recorded a positive test in February

The temperature of your room may be more essential than you may think

Plus, how you can test the range of motion of this often-forgotten joint

In-race data collected during the world championships sheds new light on how top endurance athletes avoid overheating

How to deal with death, injury, and loss, and why the tough-guy culture of the mountains is so toxic to healing.

How ���ϳԹ���’s endurance brand director fueled for the most important running day of the year

Plus, why post workout fueling is so important

Training, tools, and techniques vary. What you need to know to choose a physical therapist versus a chiropractor.

Chances are you can catch the nighttime spectacle from your backyard

These exercises will improve your posture, balance, and stability

Have an uncontrollable sweet tooth? It might be your brain.

After the worst of your injury is behind you, these movements will help you return to your active life with confidence

Action plans and inspiration for you to get in better shape

At a dark moment in his childhood, the actor found belonging when he buried himself beneath the snow

We asked experts how much protein, and what kind runners should be eating, covering vegan to meat-eaters and everyone in between

There’s plenty of hype about ways of boosting your respiratory system. Some—but not all—of it is real, according to a new review.

You need flexibility and stability to train effectively. That starts in your toes.

Outdoor time with your partner is more than just fun—it can be the key to a superstrong bond

A new review weighs the evidence that strength and training adaptations vary across the phases of the menstrual cycle

Why your decades-old recovery regimen may no longer make the cut

Taking care of your mind is just as important as taking care of your body

New studies confirm that spending time outside can ease physical symptoms

We asked experts what to consider before you hit the pavement

Researchers use isotope tracers to accurately calculate calorie burn and other parameters during a grueling full-day ride

Athletes of all levels have considered whether their choice of birth control might influence how they train, recover, and perform. But the answer is complicated. Here’s what you need to know.

What’s the difference between overcoming hardship and succumbing to it? Grit.

It's simple—but so challenging

So-called “augmented feedback” can offer both information and motivation. A new study tries to separate the effects.

After a grapefruit-size cancerous tumor nearly killed her, the physician committed to spending as much time as possible doing what she loves most

Here's how to strengthen and stretch an area of the shoulder that can be difficult to exercise but easy to injure

While trying to qualify for an English Channel crossing, swimmers swallowed ingestible thermometers. They got really cold.

It was a tribute to being human

Experts weigh in on whether your period ought to have a say in your workouts

Age may be just a number—but so is your weekly mileage

The fitness industry is rife with harmful messaging around food and exercise. Here’s what to know about when food behaviors are a problem.

It's the hot new recovery tool. Here’s what to keep in mind when using one, according to physical therapists.

Hydration isn’t just for race day. The latest science shows that it not only makes you feel better and stronger today, but is key to a long and healthy life.

Has Maurten finally figured out how to harness the power of baking soda without paying the gastrointestinal price?

Double threshold days and lactate meters have propelled Jakob Ingebrigtsen and others to the top. Should the rest of us follow suit?

One yoga teacher immersed herself in freezing water for 31 days. Here’s her advice for how you can do it, too.

Deep meditations in the woods? Yes please.

Research makes a strong case for taking your practice into the wild as the weather warms—or at least your backyard

Learn about the benefits of being properly hydrated daily

Researchers test the assumption that top athletes are more sensitive to internal cues, with surprising results

Exploring how the simple act of spending time outside can solve so many of life’s problems

I was forced to tap into my muscles, mind, and breath

All that hiking, biking, and climbing can take a toll on more than your quads

A new study tests the idea that, with the right building blocks, connective tissue can repair itself after all

Internationally acclaimed coach and author Brad Stulberg wants runners to love the process, seek community, laugh at themselves, and stay flexible

A big-data analysis of Strava training logs estimates the slowdown for marathoners who miss a week or more

Because a healthy pelvic floor is, well, essential

According to the longest happiness study in history, we all need to be strengthening our relationships

Yogi Bryan explains what you can try anytime your anxiety becomes overwhelming

A new model breaks down the ability to fight through adversity into its constituent parts

It’s no surprise that what people eat has an impact on their health, but trying to pinpoint exactly what diet out of the hundreds out there is most optimal for a long, healthy life can be overwhelming

Army researchers assess the evidence on what makes you stronger, and speculate about new approaches that might work even better

Healthy habits are hard to maintain. We sent five writers on long-overdue quests for self-improvement.

I love to cook, but finding time to make dinner remains a challenge. I figured it was time for an assist.

After years of infinite scrolling, it was time for a drastic intervention

A working mom’s experiment with forced midday snoozes

I'm a seasoned outdoorsperson but I've never lifted weights. How hard could it be?

Believe it or not, talking to new people won’t kill you

How I broke my obsession with the delicious little packets and fueled with real food instead

Figuring out how to get better sleep and more exercise and is hard—which is why we tried out some new programs for you

The recovery revolution will continue to boom, as will our collective enthusiasm for women’s sports

A head-to-head lab showdown finds that power and efficiency depend on your preferred running surface

How Jenelle Manzi fuels to combat health condition and get through her busiest season

This herb’s relaxation properties may be the reason peppermint is in every product on the shelf. Could you benefit from a cup of tea, capsule or drop of oil?

The sports bras, leggings, and sneakers that seriously changed my life

Instead of sending your peels to the trash, there may be a way to repurpose them—no composting necessary

Moving from long to short efforts during a workout maximizes the training stimulus

It’s easier than you think to add nutritious foods into your diet this season

The downside of veggies, the upside of emptying your colon, and more

If the wellness industry doesn’t prioritize the health of the environment, is it really looking out for yours?

This diagnostic tool promotes fatphobia, which can cause more health problems than extra weight, and is rooted in racism. It's time to throw it away.

New research finds that, all else being equal, runners don’t have more gastrointestinal problems than cyclists