We asked experts why we get sleepy after long runs, and if taking a nap is the best move

Is Taylor Swift an elite endurance athlete? On the Eras tour, the singer-songwriter is performing three nights a week, singing and dancing for as long as it takes most people to run a marathon.

Sebastian Salsbury has been running ultramarathons since he was nine years old. Now, this California teen wants to compete professionally—and win.

Whatever New Year’s resolutions you can dream up, we’ve got you covered at Outside. Come along for the ride, and run strong in 2024.

We looked at thousands of data points on Strava to determine what winter habits make for a successful summer season

Every fall, a group of Denver runners celebrates National Taco Day by running 31 miles using the fast food Mexican chain as aid stations

You felt fine a day after your long run—so why the heck are you slogging through your easy workout two days later?

It’s the most wonderful time of the year for ‘music doping.’ Feliz Navi-dash your way to happier, faster runs with Christmas carols.

After three-plus hours on the treadmill belting out every song on the Eras tour, I can tell you why Swift’s concert training regimen works

Tap your full potential with advice from professional coaches and athletes—and the inspiring stories of runners who refuse to be limited

Without an official definition, this alternative term might be more useful

Focusing on your arm swing is a quick and effective way to improve your stride

Sure, you may lose a little fitness, but the appropriate rest period supports long-term gains

Portland, Oregon-based endurance nutritionist and elite mountain athlete Alex Hasenohr dives into the world of coffee, the gut, and running performance

As popularity in trail running skyrockets, so too are wilderness medicine courses that focus on common trail running injuries. Here are some critical ways to stay safe on the trail as seasons change.

We looked at a ton of data from last year’s fall marathons to see what Boston Qualifier (BQ) runners did differently in training and racing

How to stick to a fitness routine and add some joy into your endurance training

These commonly neglected training strategies will increase the likelihood of your fastest marathon—and they couldn’t be easier

How to think on challenging runs depends on your intention. Here’s what the research says.

Run regularly. Not too fast. Mostly trails.

10 motivational tips to get you out on the road or trail on days you just don't feel like running

Can the famous “base building” concept apply to your strength routine, too?

Three variations of the glute bridge to strengthen and and add power to your stride

July was officially the hottest month on record. We reached out to Phoenix runners to learn about how to adapt and train in sustained heat. 

Running fast is important, even for beginners and endurance athletes. Here’s why, plus four essential workouts to start.

Modern gadgets tell us more about our physiology and recovery needs than ever before, but how might this constant data bath might actually work against our training?   

This viral social media movement focuses on consistency over intensity, and it might help you recommit to a running routine

You can boost performance by tackling heavy blocks of training—if you avoid excess fatigue. Here’s how to walk the line.

Running volume is important, but how you structure your training might matter more

Injury to the Achilles tendon can be long-lasting. Here's how to diagnose, treat, and prevent it.

When you consistently stress the body and the mind, you are changing your chemical makeup. Here’s what the latest science tells us about burnout.

Four unconventional ways to manage chafing—and effective alternatives

Ten self-assessments every runner should be able to pass, plus the exercises that will get you there and make you a more resilient runner

While Jeannie Rice and Jenny Hitchings are busy setting masters world records, their differences in training are even more instructive than their similarities

Strengthen your foot core with these simple exercises to prevent injury, from your feet to your hips

Strava data scientists compiled numbers from Western States 100 Mile Endurance Run finishers, from 2018 to 2022, to help us investigate patterns behind successful finish times. Here’s what they found. 

These five red flags might be keeping you from running faster

When she broke her neck in a crash, the mountain biker was forced to face what she’d been unwilling to admit

This one trick can get you out the door and into a routine of consistency and health, whatever life brings

How much mileage should you be running? Two top coaches share helpful ways to think about the volume question so that you can find your optimal mileage number.

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.   

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

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. 

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.

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

Reaching for a new level will leave you feeling sore and blah—until the day darkness turns to dancing

Expert strength running coach Jason Fitzgerald wants us to keep our easy runs easy, but not forget the importance of workouts 

Olympian and veteran elite coach Mark Coogan’s central advice on making the most of your miles

A physical therapist details what usually brings runners into his office and lays out strategies to keep you injury-free

Bones are made of dynamic tissues that need stress, just not too much, says one of the world’s best ultrarunners

Everything you need to know about motivation, fulfillment, and achievement in this lifetime sport

Ten tips to kick-start your fitness at the start of the new year

And what does Damar Hamlin’s cardiac arrest tell us about the risks sports pose to an athlete’s heart?

Minimalist running will always be a topic for discussion, lively opinions, and varying advice. Take the time to educate yourself on whether it’s right for you.

Burnout can affect participants of any sport—including hiking. Here’s how to identify, prevent, and cure it.

An expert weighs in on why runners should go minimal—when they’re not running

I never expected to be taken off a flight on a stretcher and rushed to brain surgery. Here are some ways you can reduce your chances of the same fate.

In the wild world of endurance sports, recovery can feel like the last frontier

Do you turn into a real redhead when you run? Our expert says that may not be a bad thing...

Sharon Gayter’s closely monitored world record reveals insights on marathon fueling, pacing, and strategy

How to train your proprioception to more effectively control body movements and improve power, speed, agility, and durability

Follow our 12-week, effort-based plans to achieve your half-marathon goals and have a great race experience

Science-backed strategies to help you learn to accept racing discomfort and choose how you react to it

An experienced physician and marathoner answers questions you’re embarrassed to ask about running and sex