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It’s not just for elite athlete. Training alone—in the right dose—will make you a faster and more resilient athlete.

Specializing in one sport will take you only so far. To really break through, you'll need to branch out.

Cue: Your iPod dock set up by the door. Reward: Serenity, more intuitive pacing.

Make those nebulous resolutions last by turning them into habits. The key? The right reward.

Because even a great pair of socks can make getting fit more doable

Fact-checking trusted training maxims

The Swedish car company has partnered with outdoor gear maker POC to make helmets that communicate with cars. The goal: to end collisions between bikes and drivers.

Sign up for a midnight fun run on New Year's Eve—and kick ass. Here's how.

A veteran of 25 Tours de France, James Startt is the senior American journalist in the press room of the world’s biggest bike race. Here is just a small selection of some of his favorite images from 2014.

The only gear you need for long hauls, tested over who-knows-how-many miles.

Turns out the spin bike is the key to getting—and staying—fast

Strength is useless if you don't hone your agility—the skill of translating power into meaningful movement. And it all starts with mastering the "Kong vault."

More than 76 years ago, a visionary Australian coach had an epiphany that forged a generation of super-athletes: true fitness is all about translating fear into raw power.

One of the most surprising heroes of World War II was a pint-sized shepherd nicknamed The Clown—and his fitness wisdom can change your life.

When a longtime triathlete took on a Kokoro camp—a beyond-extreme fitness challenge modeled on the Navy's Hell Week for SEAL candidates—his first question was purely about the pain: Can I survive this? The second was more metaphysical: Should I even want to?

For years, it seemed like drug testers would never get ahead of cheaters. The Russian bribery scandal raises an even scarier possibility: the testers are dirty too.

The two-time Olympian will lead the women’s national squad to the 2015 World Cup—and share her secrets to unleashing athletic potential.

Examining the perpetual youth and singular talent of surfing's king

More pain quest than workout, misogi is the secret, punishing ritual that has revolutionized Atlanta Hawks supershooter Kyle Korver's game. You have time for this—if it doesn't kill you first.

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

I'm training for an upcoming marathon, and my company's giving out influenza vaccines the week of my race. Will the shot impact my performance?

Get ahead of the holiday health slump.

5 brain hacks that will make you fitter and faster right now

The day of the gel has come and gone. Elite athletes are ditching the sugar-laden junk for natural on-bike nutrition, and pro cyclist Ally Stacher is leading the charge with her new sweet potato bars.

Advanced screening can reduce the likelihood of sudden cardiac arrest, the most common cause of death among athletes. So why is it so controversial?

With warp-speed ascents that include the Matterhorn (1:56) and Denali (9:43), ultrarunner turned alpinist Kilian Jornet Burgada is the king of the endurance world's latest obsession: fastest known times. And now he plans to run up Everest.

Or is another mysterious condition to blame for deaths during the swim leg? A new report unveils a long-misunderstood killer.

This year's star attendee: Caroline Wozniacki

My house is filled with sweets this time of year. Can I use them instead of sport gels and gummies for long runs and bike rides?

The American Record holder returns to New York 13 years after her debut—and she might just break an American record.

We don't know if the biohacking craze is full of snake-oil salesmen or prophets. Probably a little of both.

Getting faster means slowing down, too.

Don't shorten your routine just yet.

Convince the computer you're clean and you get the Clean Protocol program's seal of approval. Any takers?

Face it, most of us aren't complete athletes. We lack the strength to make us fit, and we follow cultlike exercise programs. But there is a cure: Listen to renegade coach Mark Rippetoe, grab a barbell, and get back to basics.

Will leaping fiery hay bales amount to nothing more than an adrenaline-fueled fad? Or could it one day become an Olympic sport? That all depends on what comes next.

Or is the test they give me at the shoe store good enough?

The marathoner runs on routine—and strawberry cheesecake.

Long shunned by endurance athletes looking to stay lean, the enemy is having a moment

Throw away your ice packs and ibuprofen if you want to recover right.

After a skydiving accident in October 2013 left Squaw Valley Ski Holdings CEO Andy Wirth without a right arm, he didn't quit charging. Now, Wirth lives a life of Ironman racing and adventure. As told to Gordy Megroz.

There's a reason we chow down on pasta and bread before a race—carbs are proven to boost performance. But when it comes to training, we need to rethink our nutrition plan and periodically look to fat, not sugar, as fuel.

These wearable tech fitness-tracking tees go way beyond the wrist.

As patients jettison insurance plans for concierge care, some are looking to optimize their fitness level along with their health.

Numbers. Rankings. Results. The data-driven mindset is preventing us from enjoying the outdoors.

The 33-year-old triathlete is American's best hope to reclaim Ironman Kona.

For one 41-year-old Australian triathlon champion, retiring just meant taking a break.

The "retired" German may just spark an arms race—and that's great for cycling.

With a series of impressive 100-mile wins under his belt and perhaps the most fitting name ever bestowed upon a shoe-salesman-slash-ultrarunner, Mike Foote seems to be doing everything right.

Think you're ready for the world's longest stand-up paddleboard race? We'll be the judge.

Tips from 4 elite ultrarunners

A ride through the USA Pro Cycling Challenge with 2012 champ Christian Vande Velde

Sometimes when I'm in the middle of a really hard workout, it tastes like I'm sucking on metal. Here's why.

Nathan’s Zeal race vest packs a lot of hydration into one small, efficient must-have.

Proponents of the Banting diet claim that cutting carbs is the key to weight loss and improved health. There's just one problem: it'll make you slow.

Some people might be built for speed and others for distance, but everyone benefits from running faster. This is how you do it.

There’s a reason more and more amateur athletes are turning to professional trainers to retool their workouts: it’s the best way to improve performance.

Hill sprints will change the way you run

After an Ironman or an ultramarathon, is it better to take days (or weeks) off of strenuous exercise, or to get right back out there?

Henry Hawk is 77 and still obsessed with fitness. But lately he's also been focusing on a new passion project: Helping spinal injury patients move again.

You'll never get close to the ultrarunner's 90-plus podium finishes, but his rules will help you run your best race.

In The Art of Competition, Ironman-turned-author Mark Allen gives insight into the thoughts that helped him race his fastest while living to the fullest.

When my wife and I go on long runs together, she always manages to finish strong while I fall behind. Am I just out of shape, or do women have an advantage in endurance sports?

Plus, celebrate the 30th anniversary of the marathoner's Olympic win by making her favorite oatmeal cookie recipe

Two brothers and a sister—whose parents are endurance athletes—attempted to swim the English Channel together this month. Does the family factor add any advantage?

Two years ago, Filipe Leite turned his ponies south on a journey from Canada to Brazil. Ten thousand miles later, he's almost home after facing drug traffickers, grizzlies, and mad bulls on an epic transcontinental trip.

The "eight-percent rule" ignores the power exercise has to counter time spent on your butt.

Hardrock veteran Kirk Apt has logged 2,010 miles and 680,000 feet of vertical ascent through the San Juan Mountains since 2000. Here's how.

Serious careers? Check. Committed to their families? Check. Able to beat the pros at their own game? You know it. Five hard-charging desk jocks who manage to do it all share the secrets of their success.

Top shoe brands are racing to enter the super-cushioned fray. We review 2014’s corpulent shoe crop.

The science is out on whether ultrarunning is good or bad for our hearts—but I'm sure the Hardrock 100 is good for mine

Sometimes you have to take your own advice—or suck it up and eat crow.

You’re likely to face some hot races, or at least some hot training days, this summer. So I asked five elite ultramarathoners what gear they recommend to keep cool during the hottest months of the year. Below, I’ve listed five gear hacks, tips, and products these men use to battle…

To win this year’s Tour Divide, Jefe Branham rode 170 miles a day, slept an average of four hours a night, and endured both unrelenting snow and 100-degree heat for 16 days straight. What you can learn from his time in the pain cave.

That magic threshold is, well, bogus. And we've known it for years. So why are we still so obsessed with logging 10,000 hours of deliberate practice?

Taking your kids to an ultramarathon can be a distraction from the aches and pains of running long distances

Bet you didn’t think this would come up in your fitness regimen, but your esophagus needs love during training, too. Intense exercise can contribute to heartburn and gastroesophageal reflux disorder (GERD), and there’s a good chance that ramping up your routine may be causing your symptoms, says…

A dispatch from the world’s toughest mountain bike race.

Endurance coach and author Ben Greenfield guarantees your brain, guts, and groin will thank you

How do we put this nicely? If you’re anything like the participants in a recent Canadian study, you’re probably wrong about your workout intensity. (And yes, you probably are like them, considering that the group contained both men and women of different ages, ethnicities, and BMI classes.)…