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Five exercises that will guarantee you have the strength to adventure all weekend, well into your eighties

Sure, it's fun and relaxing—but it can also be a key part of a fitness routine

There's a lot of overlap between athletics and work, and the world's best apply the same principles to, say, training for a marathon as they do to building a business

Cycling, running, and obstacle course racing are dominated by white-collar workers. And while disposable income makes competing more feasible, researchers are also starting to discover a psychological pull that draws these people to masochistic events.

In today's quick-fix culture, it's more important than ever to remember that a few simple lifestyle changes can transform your overall health

The best endurance athletes push their minds and bodies as far as humanly possible—a practice that might not actually be good for them

The hardest part about your athletic pursuits may be building a long-term relationship with them

The best performers in the world share a few key habits, and a new book helps you implement them

Every world-class performer—from athletes to chess players to musicians—follows these rules to keep improving at their disciplines

For an athlete, being injured is often harder psychologically than it is physically. But the elites have developed a few key tools to help stay happy and sane while healing.

Turns out extending your lifespan is pretty damn easy. Just follow these definitive, scientific, time-tested methods.

Self-talk—repeating a phrase in your head—is a practical, proven strategy to push your limits

Ultrarunning is as tough on the mind as it is on the body, so the sport's best have developed mental strategies to reframe their darkest moments. Their techniques can help us all get more from our training.

How to put in the work now to ensure that you will go for it later

It's not just about our bodies. It's also about our minds.

Our devices are increasingly taking us out of reality, even when we're in nature. Here's how to get back into it.

In 2010, entrepreneur Jesse Itzler invited Navy SEAL David Goggins to live with him for a month, completely upending his life and fitness routine. We wondered: what habits have stuck with him?

What the greatest adventurers, artists, runners, and entrepreneurs prioritize throughout their day, and how to incorporate that into you life

Science shows us that working hard to achieve a goal may increase our sense of satisfaction. Plus: how to measure how happy you are.

An overreliance on technology can make you slower. When it comes to training, it's time to rewind the clock and rely on our more primal instincts.

Think of MuscleSound as a fuel gauge for your body that helps optimize your diet and training plan

Studies have shown that more than half of us abandon our trackers after purchasing. The more effective, low-tech answer to your fitness goals? A friend.

We spent a year picking the brains of the best performers alive about the secrets to their success. Here's what we learned.

A growing body of research says that giving thanks is beneficial for health and performance

Sarah Piampiano left a high-powered investment banking gig to train for triathlons full time. Five years later, she's a champion. Here's how she did it.

Health and fitness columnist Brad Stulberg shares his tips on how to ensure that an active life and city life are not mutually exclusive

Developing flexibility is just as important as developing strength. Here are the best moves to make you a healthier, more efficient all-around athlete.

Wisdom from the strength and conditioning coach who trains the NFL’s best

Fitness gains don’t occur during workouts, they occur after. Recovering while stressed could throw a serious wrench into your training.

Our organ-by-organ breakdown of what happens inside your body when you push it in the heat

Skepticism about doping is at an all-time high. What, if anything, will save sport? Seven experts weigh in.

By focusing on the controllables, practicing gratitude, and relying on a foundation of physical and mental training.

While Michael Phelps admitted that his expression was unintentional, could it have influenced his gold medal-winning performance?

Everyone experiences pre-event nerves. Here’s how to turn them into an advantage.

Physical resilience, mental toughness, and embracing both the highs and lows

For the first 93 miles of last weekend’s Western States 100, 26-year-old Jim Walmsley was on pace to shatter the course record. Spectators following Walmsley’s progress—both along the trail in Northern California and via social media—were dumbfounded: Western States is considered one of the most competitive ultras in the world, and this was Walmsley’s first-ever 100-mile race. Then, just seven miles from the finish, he disappeared.

Hard work, sleep, meditation, routine, and drawing upon years of wisdom

Nine-time bouldering national champion Alex Puccio shares her secrets on bouncing back to compete at the GoPro Mountain Games

Tips from the free immersion record-holder on training his body and mind for freediving

We caught up with Jesse Thomas to chat about how he holds it all together and to learn about some of the practices underlying his success both on and off the course

Identify what you love about running, get in a groove, and keep coming back to it

We caught up with the San Francisco-based rider to learn more about her record and the work it took to get there

The art and science behind the best training environments

Focus on form and function, cultivate bodily awareness, and stand up to sitting

You can't. But you can channel it and grow from it.

No, they're not all about fun runs and Tough Mudders—and we now have numbers to back it up

First, they don't just tolerate it—they love it

Ten tips from the Olympic hopeful who's on track to becoming a household name

Twelve insights for scaling massive vertical faces

Achieve the endurance of a distance runner, the grit of a climber, and the skills of a slalom racer

With so many fitness offerings to choose from, it’s hard to separate what works from what doesn’t

Athletes chasing excellence are increasingly crossing a fine line between what their bodies can and cannot tolerate.

One prominent scientist thinks so, and it’s about time we had a thoughtful discussion on the topic

How to push your body to the limit and make the podium

Dane Jackson is an international kayaking prodigy. Here’s an inside look into his flow—and what his sport can do for you

Queen of the road Megan Guarnier has developed tremendous physical fitness and psychological fortitude—now she’s after a medal at Rio. Here's how she got there.

Don't let decision fatigue daunt you. Underneath all those wrappers lay a few core principles to fuel your workouts.

At just five foot three inches and one hundred and fifteen pounds, whatever Ironwoman Mirinda Carfrae lacks in stature, she makes up for in heart

An inside look at Katie Ledecky’s rise to greatness that will leave even non-swimmers awestruck

For some, an ultramarathon can be close to a religious experience. For all, it will undoubtedly be one of the most ridiculous things you can put your body through, as evidenced by our organ-by-organ breakdown.

Endurance expert Matt Fitzgerald shares how to push your body further by mastering your mind

Pain fades, but glory is forever. Or at least until your next competition.

New research is helping athletes engineer their own flow state

How even the smallest intervals can make athletes mental superstars.

Michael Phelps and Killian Journet are both amazing athletes, but they occupy opposite ends of the spectrum. Where do you fall?

The science behind how logging lots and lots of miles fosters an unflappable demeanor—and how to get it yourself.

You just have to tweak your training and eating habits. Here’s how.

Bottom line? Eat like an elite to maximize health and performance.

This super coach’s three unconventional training strategies may be the key to your next PR.

Why even the healthiest athletes stock their carts with Lucky Charms and Ben & Jerry’s—and how to beat the junk-food craving once and for all.

A recently declassified report shows that stressing your mind is the secret to training your body.

Restaurants make us impulsive, which means it can be hard to turn down the cheesecake no matter how big a label it comes with.

Our drive to raise billions annually is a crazy effective performance enhancer.