Crunching the data suggests that distance runners at this year’s track world champs paced more aggressively than ever

And everything else you're wondering about the carbonated-water craze

Delayed gratification gets harder when you’re overtrained, according to a new brain-scanning study

Maybe not in our hearts, but certainly in our brains. Plus, they can make you love the indoors far too much—which is why there’s now a full-fledged, woodsy rehab center for joystick addicts who need a soothing pathway back to a normal life.

A handful of new products are claiming they can. The jury's still out on whether they deliver enough of an edge to justify the agony.

New evidence bolsters the claim that adapting to hot weather gives an all-around fitness advantage—but not right away.

These underappreciated, nutrient-dense farmers'-market finds are worth adding to your shopping bag

The author of 'Digital Minimalism' explains how you can maximize your free time

Whether you’re striving for peak performance or coming back from injury, psychological techniques can help

Some key takeaways on hydration, power meters, recovery, and menstrual period tracking

NOLS (National Outdoor Leadership School) is founded on a simple principle: If you take students into the wilderness, they come back better people

When your love for the outdoors meets chronic pain, you grieve—and then you adapt

This basic, effective workout will build functional strength in key arm muscles

Ten moves to improve strength, running economy, and resilience for the road or trail

Caffeine is old news on the supplement scene. These next-gen coffee products aim for additional benefits.

The former downhill champ has had his fair share of spills—and he likes to show them off

What we teach our kids about nutrition can impact them for the rest of their lives

The quality of your habits determines the quality of your life. Here's your step-by-step guide.

Making your own delicious performance beverage is as cheap as it is easy

Two new studies on beet juice and VO2max highlight the limitations of sports science research that excludes female athletes

Flexible, strong hamstrings are happy hamstrings

Here's how to tell if you're getting enough of this essential, overlooked nutrient

A new meta-study, which followed 267,000 people, sheds a few answers

Figuring out how long, how often, and when to train in the mountains remains an art for endurance athletes

After I lost 20 pounds and my red-blood-cell count dropped to dangerous levels, doctors finally knew what the problem was. But no one knew how to fix it.

In his new book, Range, author David Epstein makes a strong case against specialization in sports and life

Add these nine moves to your gym routine

A strong back is key to just about every sport—and can help you out even when you're deskbound

A good diet is a balance of nutrition, flexibility, and giving your body what it needs

Patricia McNeal biked across America five years after surviving a stroke. And she's going to do it again.

An expert's guide to sticking it out through pain and suffering

The physiological and psychological responses to different types of interval workout depend on the details

John Joesph's diet is key to his longevity—both on the stage and in races

A historical analysis of world-record pacing suggests that beating your own best time can be complicated

7 exercises to improve strength, stability, and resilience for the trail

For his 50th birthday, photographer Jeff Johnson wanted to run 50 kilometers and climb 50 pitches in Yosemite

Hint: it's about introducing just the right amount of chaos

The Canadian pilot has summited Mount Everest, biked the Arctic, and rowed across the Atlantic

Alyx Walkinshaw from Railyard Fitness in Santa Fe shows us how to do seven of the best oblique exercises

She's one of the most successful cyclists in U.S. history. And she's done it her way.

The new program, called Kurbo, could encourage dangerous habits for young people

A study that assigns different workout plans to each leg shows just how much (or little) the details matter

New centers popping up in New York City can help you reach peak wellness—for just a few hundred dollars per month

Scientists debate the physiological benefits of ramping up your training intensity or your training volume

Hydrating is supposed to make us healthier and more vibrant. But how much is too much?

Up your game with these moves that translate to the vertical realm

You have to work hard to build strength, but that doesn’t necessarily mean collapsing to the floor after each set

Quality shut-eye could provide the training boost you've been looking for. Here's how to get more of it—naturally.

When it's too hot to cook, opt for refreshing salads, noodle bowls, and smoothies

Here's what actually works

In this episode of Moves, instructor Doug Lawder of Santa Fe–based Railyard Fitness walks us through six moves for a stronger back

In Senegal, wrestling is a sport in which athletes can make millions of dollars or nothing at all

It pays off to be smart about your recovery time

Start-line nerves, finish-line beers, and lots of fast, hard miles in between aren't easy on the gut. Here's what I've learned over a decade of racing.

What causes it and five exercises you can do for relief

She's the first person to finish the Leadville Race Series and the Grand Slam of Ultrarunning in a single season

Kelly Starrett has spent more than a decade training Olympians and professional athletes

Alt meat isn't going to stay alt for long, and cattle are looking more and more like stranded assets

The theory makes sense, but actually showing that “hyperoxic training” makes you faster remains a challenge

Journalist Rowan Jacobsen discusses his controversial feature suggesting we need to reconsider our relationship with the sun and sunscreen

We have a lot of opinions about how to make the most of your pit stop, whether you're headed to or from an adventure

The global meal-replacement market is growing at nearly 7 percent annually and expected to reach $20.6 billion by 2021. But as we hack nutrition for hyperefficiency, have we evolved past the need for deliciousness?

The Wave Tool is a durable, pocket-size way to mobilize and keep your muscles tension-free

New research suggests that the emotion has a singular ability to lower stress and improve our overall well-being. So how do we get more of it?

A new study finds that your “critical speed” threshold drops in the last third of a marathon, which may explain why the distance produces so many blow-ups

In this episode of Moves, Santa Fe–based Railyard Fitness instructor Doug Lawder walks us through moves for stronger legs

No, we’re not talking about nailing the perfect Instagram story or crafting a funny Facebook post

It takes skill to have no idea what you're doing outdoors

A simple self-test zeroes in on the most efficient stride rate for your running style

Calorie counting can be a huge burden. Plus, you're probably terrible at it.

A new study looks at the effect of subtle wording changes on the performance-boosting power of motivational self-talk

Thanks to apps like Strava, dialing in a precise training plan has never been easier

The world-champion obstacle course racer has had a 20-year history with anorexia. But now she's in the process of recovering, and she has some important lessons to share.

Nine athletes share the phrases they tell themselves to reach peak performance

Experts from the Wilderness Medical Society have combed through the evidence to assess what works and what doesn’t

From summiting a mountain to going fake camping, here’s how to make the most of our favorite day of the week

Staying healthy is crucial to athletic performance, and a new analysis from the 2018 Olympics suggests some surprising defensive tactics.

Late-night calories can boost recovery and set you up for an active day. Here, a nutritionist weighs in on athletes' favorite snacks.

Can a grassroots movement of physicians convince big health care that free medicine is the way of the future?