2021 Outsider of the Year Steph Catudal’s new memoir, ‘Everything All at Once,’ offers a raw look inside the paradoxical landscape of grief and surrender, love and loss of her father, and nearly her husband, endurance athlete Tommy Rivs

When the schoolteacher had a stroke, her doctor told her to stop running. Instead she embraced the sport with a newfound joy.

Gladys McGarey, MD, explains what we should all be doing to seek out happy, healthy, and fulfilling lives

Turn that vacay into a trail-running foray with these popular destination races

These science-backed hacks can help you lower your stress levels almost instantly

Here’s how to maximize the benefits of that “hurts so good” feeling

The ultrarunner and endurance skier is open to whatever the mountain gives her—she wants to experience a new adventure and inspire other women to do the same

Race director Megan DeHaan partners ultrarunning and agriculture to celebrate and protect open space

Physicians and researchers weigh in on the benefits and disadvantages of having hypermobile joints

The legendary trail runner and mountaineer was trying to climb the world’s highest mountain from the West Ridge

Kelly Murray, a certified pediatric and adult sleep consultant, shares what you need to know about this common habit

For Mental Health Awareness Month, the Olympian partnered with the New York Road Runners to share the message that when it comes to mental health, it’s about progress, not perfection

It’s a bit simpler than you might think

The 2023 season should be full of record-breaking performances from the sport’s biggest stars. Here are the most important things to know.

Many believe intermittent fasting negatively affects women’s hormones and fertility. The science suggests otherwise.

How a successful running coach from California hopes to bring other female coaches along

A certified personal trainer breaks down what you actually need to know about lifting and running

‘We Share the Sun’ is a new book that takes a behind-the-scenes look inside the life of Patrick Sang, the coach behind many of the Kenyan super-elite marathoners

The father-son duo of Dick and Rick Hoyt conquered over 1,100 endurance events worldwide, including more than 70 marathons

Scientists reconsider the assumption that it only helps strength and power athletes

After being hit by a car, the entrepreneur was afraid to cross the street. Training for a marathon helped her take back her life.

Social media influencers have started a trend of posting videos of them running long distances without training. Here’s why the science says it’s probably not a great idea.   

We traveled to Los Angeles to Strava’s exclusive event of panels and announcements. Here were some of the essential things we learned about where the tech giant is headed. 

Because of all the gear you buy for your rides, your helmet may be the most important

The New York-based upstart apparel company’s community ethos isn’t just for show

These joints are essential for all of your outdoor activities. These movements will keep them functional and healthy.

Losing a close friend taught the fitness instructor that embracing your emotions is a sign of strength and growth

Come meet the partners of elite women runners and get a glimpse into how they support their faster halves

Writer and outdoor adventurer Elisabeth Kwak laces up her HOKA Anacapas and embarks on a challenge that helps her redefine success and discover a new identity as an outdoor athlete

The sport sweeping the country taught me how to feel like a kid again

Plyometrics can make you a more efficient runner, and it turns out they don’t need to be complicated or risky

Running can give you a longer life, better sleep, improved immunity, mood, and more—it’s even good for your knees and lower back

These five destinations deserve a spot on your western U.S. bucket list

Answers to three of the most common questions asked in the springtime

A group of women who are out to make history, and upend how we think about competition in the process

The wild world of fastest known times includes crazy ideas, stunning successes, disappointing failures—and so much in between

To build endurance as a runner is to build “capacity.” But what does this look like? Strength running coach Jason Fitzgerald explains. 

A personal trainer shares seven exercises that focus on your biceps, triceps, and shoulders

This Mental Health Awareness Month, here are some of our favorite articles on running and the brain, as well as expert advice on how you can master your mind to enhance training, boost recovery, and become a happier runner.

In an excerpt from her forthcoming book, ‘Up to Speed: The Groundbreaking Science of Women Athletes,’ longtime Outside contributor Christine Yu argues that female athletes deserve their own benchmarks for athletic success.

Fearing racial violence, the Colorado trail runner turned to her network of athletes. Their support helped her move forward with pride.

These five destinations deserve a spot on your Central U.S. bucket list

Researchers look back on the lessons from 25 years of “live high, train low”

Because staying hydrated doesn’t have to be complicated

This workout will help you incorporate this critical movement pattern into your strength-training regimen

We crunched the numbers from hundreds of thousands of Strava uploads, to see how athletes running in different marathons train differently, and why the Boston field is so speedy

We're only human, and bad races here and there are inevitable. Here's a crash course in honing your mind to mentally power through a tough day.

These 8 concepts I learned translated far beyond just the physical practice

A near-death experience prompted this trail runner to take stock of what mattered to him—fighting for civil rights and adventures in the mountains

Racing can be a scary thing. Use these tips to make sure you're mentally prepared before the gun goes off in your next race.

Reap all the physical and mental advantages of mindfulness without ever saying “ohm”

Here’s a look at some of the Outside Run Editors’ favorite finds last month, from gear obsessions to favorite podcasts, recovery drinks to massage tools

First there was altitude training. Then it was heat training. Now it’s… pollution training?

The competitive endurance athlete chose not to complete a grueling marathon. That's when she realized: you don't have to finish everything you start.

Is your heart rate high, even on easy runs? Aerobic Deficiency Syndrome might explain why. Here’s how to fix it.

The psychology behind why we get so nervous before a race and strategies for coping with the impending pain

Science has proven the performance benefits of caffeine, but companies are now using coffee grounds in running apparel. Here’s the scoop.

You'll want to try this hack to beat your insomnia

How to satiate your curiosity about the cosmos

More money means a greater risk for corruption, but professional running needs something to shake up the status quo

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

45,000 runners are expected to run this year’s Memorial Day 10K on May 29

This unlikely combination may just improve your flexibility and performance

Got your eye on an FKT? The MTL Skyfire 2 can take you there.

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

After running faster than Khalid Khannouchi and Galen Rupp, Canada’s fastest marathoner is riding the wave to the Paris 2024 Olympics

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

Despite being an accomplished mountain athlete, she struggled with her body image. But by imagining how younger girls would see her story, she found the strength to accept herself.

Real-time video coverage of ultrarunning events is becoming increasingly sophisticated. Is that a good thing? 

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.

Despite the proliferation of destination marathons, some runners are making a conscientious decision to stay closer to home. But they wouldn’t judge you.   

Enter now for a chance to win a year of hydration from SOS Hydration

Sarah Bowden, a high-level theater performer, discovered a new source of movement through running. This weekend’s London Marathon will be a true test. 

How can our running practice leave a lighter footprint? This Earth Day, Outside Run editors share their favorite articles at the intersection of running and ecological responsibility.