The good news? You can limit some of that damage by strengthening the muscles that keep you upright.

Skin cancer rates are rising and one in five Americans will be diagnosed with it before the age of 70

This week, President Trump announced that he's bringing back the Presidential Fitness Test to gym classes across the nation. Here's what the 'Outside' edition would include.

It's best to get of out your clothes ASAP

These moves are yoga instructor-approved and help release tension in the muscles surrounding the spine, glutes, and hips

When I was diagnosed with ADHD and autism at the ages of 19 and 22, respectively, everything clicked into place, and I was catapulted into a journey of self-discovery and acceptance. I realized the problem wasn’t travel—it was unmet needs.

Now that the fastest marathoner in history, Ruth Chepngetich, has been caught, is it time give up and let athletes dope?

Scientists explore what’s happening in our brains during prolonged efforts

Feeling frazzled? Even being near one of these environments will help you chill out.

Ayurvedic teachings outline the optimal timeframe for high-quality sleep and how to adjust your routine to get in bed at a decent hour

Sunburned lips are a thing and they really, really hurt

Physiologists track the calories burned and fluids consumed during a mountain ultra

Even a light weight can give you results

You've probably been overdoing it

"Never outrun your joy of running.” —Julie Isphording. How to train and fuel well as a runner.

A weighted vest is an easy way to add some extra resistance to your strength training routine. Try these five weighted vest exercises.

Thinking of taking the 13.1-mile plunge but not sure where to start? This half marathon plan will carry you from the sofa to the start line—and across the finish, too.

Patterns emerge in a database of more than 100 trail-running fatalities

The terms are linked but not synonymous

My friend who completed the Black Canyon 50K earlier this year, swears by pickles

Training plans for those who have never run before to runners looking to improve their performances

These nonprofits and therapists harness the healing properties of campfires to help veterans, trauma survivors, recovering addicts, and at-risk teens

What we learned about the power of the mind, drafting, pacing, and more

Get healthy with us. Let's dive deep into the latest science behind sleep, nutrition, fitness, and more.

One of these moves requires a bath towel

At Nike’s Breaking4 event in Paris, the Kenyan star clocked the fastest ever mile by a woman. Here's how she did it—and why the 4-minute mark remains elusive.

Doctors said she had a small chance of survival—but a special bond with a horse named Savannah helped her pull off a miracle

Our Sweat Science columnist is on the ground in Paris for Nike’s Breaking4 race on Thursday

Eating sugar probably isn’t going to drive you to an early grave. But being deathly afraid of it definitely could.

I’ve spent the past four years twirling, shaking, and rolling around on the floor with strangers and it’s given me more answers than I can count

Repeated twisting of the uppermost part of your spine can lead to laxity and instability; sports doctors recommend safer options

Who knew that the key to a good night's sleep was a cute fabric headband?

These natural formulations definitely don't stink. Hopefully, neither will you.

Six years ago, Nike orchestrated the world’s first sub-two-hour marathon. Now, the brand—and Faith Kipyegon—are going after the women’s mile with a high-tech suite of shoes, apparel, and race-day strategies.

Spine doctors say hiking can be a surprisingly good source of back pain relief—but the way you hike matters.

Your watch or wearable isn't actually the most accurate way to determine how hard your last workout was. This completely analog method is.

Chilling on your belly is very, very good for your spinal alignment.

Where to work up a thirst—and toast your adventures—in America’s first national park

A new approach to endurance training involves inhaling carbon monoxide—and is reviving old debates about dying to win

For fly-fishing evangelist Austin Campbell, there’s nothing better than catching—and protecting—Yellowstone cutthroat trout

These yoga poses can help you conquer your next mountain with more mobility—and less pain.

These moves will prep your lower body and help you avoid injury

It’s not just about big muscles: scientists now believe that protein is also a recovery aid and even a fuel.

Your meal frequency can have a major impact on your energy levels.

These are easy to make and pack a flavorful punch

Sometimes the whole "calm" thing really must come after the storm.

According to new research, keeping two repetitions in reserve is almost as good as maxing out every set of your strength routine.

Not only does the robot waste copious amounts of water, but it spits out incomplete (and bland) recipes

Physical therapist-approved moves to warm up your arm, back, and chest muscles

It's time to deeply and truly appreciate the green stuff

Nutrient-dense, delicious, and super easy to make

Recent studies show that time spent with a furry friend diversifies your gut microbiome

The internet is ablaze with criticism of the Millennial workout staple. But are sweats really the answer? Our staffers duke it out.

Lactic acid has long been vilified, but new research shows that it doesn't impair muscle function. In fact, it might actually be good for you.

Rather than distracting me, the accessory helped me tune in.

As a bonus: you can use leftover aloe gel on sunburns, cuts, or on your face for a dewy glow

A new study shows the once-popular marathon supplement could offer significant endurance gains.

Before you reach for sleep aids, try this short, simple bedtime meditation.

The Fast-R Nitro Elite 3 claims to offer the biggest improvements in running economy since the Nike Vaporfly took the world by storm eight years ago.

Placing purposeful pressure on yourself can challenge your mind and body in a good way

The best part? You can do these in the comfort of your bedroom.

You have big training goals. Here’s how to maintain the motivation to match.

You don’t need to be a pro to care about performing at your best. Here’s how to up your game, reduce injuries, and have more fun doing what you love.

The key to flexibility, mobility, and comfort is as effective as it is affordable

Because the natural elements you'll be surrounded by can easily destroy your meds

Chronic inflammation increases as you age, but serious training can help you avoid it.

My Thai massage experience featured no table, no fluffy towels, and lots of talking. I left with more insight than expected.

For days when a gym session is off the table, a collection of at-home strength training gear can give you a full-body workout with zero wait time

New data explores the complex links between your apps, mental fatigue, and athletic performance.

Registered dietitians share the benefits of making protein stock your go-to recovery beverage

An ACE-certified trainer shares exercises to keep your muscles moving on the days you're not doing (or don't feel like doing) a high-intensity workout

The aches in your back, hips, and knees could be signs to work on your abs

The best perfumes evoke immediate emotion—and what inspires stronger feels than a beloved outdoor landscape?

How elite running team the Brooks Beasts fuels up for spring training

For one month, I experimented with routines, supplements, and gadgets to boost my rest. Here's what worked and what didn't.

The pelvic floor contains 14 to 16 different muscles. These habits are weakening them.

Wearing sunscreen in winter may not seem essential, but the UV rays are just as strong (or stronger) on snowy slopes

Frustrated by work, climate anxiety, and the noise of daily life, I grabbed my paddleboard and set off on a 1,200-mile-long journey through North America’s waterways. What I found wasn’t just adventure, but proof that water has the power to calm the mind, connect people, and remind us what really matters.

Doctors and registered dieticians share their best tips to avoid falling for bad wellness advice on social media

I walked into my first silent meditation retreat thinking I’d entered the zombie apocalypse—blank stares, slow steps, and an eerie quiet. But by the end, I discovered a kind of peace I never knew existed.