For years, female athletes have relied on training protocols, injury guidelines, and nutrition plans based on research conducted with men. That's starting to change.

(Courtesy Gaiam) Gaiam Restore Marbled Foam Roller ($20) The Gaiam Restore Marbled foam roller has a just-right semifirm density for soothing tight quads. Bonus: it looks good enough to keep in the living room. Buy Now (Courtesy Under Armour + JBL) UA Sport Wireless…

(Courtesy Teva) Teva Ember Moc Slippers ($75) The Teva Ember Moc slippers (women’s pictured) have forgiving polyurethane footbeds, hearty rubber outsoles, and cozy quilted uppers, making them the perfect after-class footwear. Buy Now (Courtesy Athleta) Athleta Hyper Focused Print Bra ($54) Athleta updated its…

(Courtesy Revere Cardio) Revere Cardio Vanilla Chai ($20 for 8) One packet delivers 15 grams of pea and rice protein and 20 grams of carbs from sweet potatoes to aid in recovery. There’s no better stocking stuffer for the endurance athlete on your list. Buy…

One thousand cyclists from across the country compete in the 200-mile gravel bike race known as the Dirty Kanza.

A new study suggests that hitting the gym more than twice a week is counterproductive. That seems unlikely.

Never underestimate the power of this simple fitness tool

The best way to improve your workout is to buddy up

The hemp plant extract is being adopted by athletes of all stripes to help reduce exercise-induced inflammation and support better sleep cycles

A new study suggests that running on autopilot is the most efficient approach.

This stretching routine will help make you faster, stronger, and injury-free.

A new study finds that having “elite” levels of aerobic fitness increases longevity relative to merely “high” levels.

Knee pain plagues athletes of all stripes. Here's how the experts handle it.

Success in sports or at work is almost never about a single monumental shift

Sidelined? Here's a little advice from the pros on staying sane—and coming back stronger than ever.

It depends—but you can hold your breath longer in cold water

Research on a pro cycling team suggests that subjective training metrics can match high-tech ones

Ross Edgley is in the middle of a 2,000-mile swim. Here's how that epic slog is affecting his skin, heart, and mind.

Most accomplished athletes, from Alex Honnold to Mikaela Shiffrin, have rituals they perform before a big day

Athletes and adventurers use rituals to get ready for big moments—whether it's wearing a new pair of socks on summit day or bouncing the tennis ball exactly seven times before bashing a serve. Does it work? Steven Kotler explores the cutting edge of neuroscience, plus a little bit of black magic, to find out.

Michelle Parker loves long walks in the mountains. Here's how she trains for them.

What if striving to be great is what's holding you back?

Evolutionary biologists weigh in on the eternal training dilemma of how to allocate time and energy to three different disciplines

We're kicking off a new fitness column by surfing legend Laird Hamilton. First up: his top tips for performing at your best.

Stay nimble and beat stress while you’re on your next business trip

Following the snow this winter? Here's how to train on the fly.

Jenni Gritters, a Power Vinyasa yoga teacher, walks us through nine common poses

Physiologist Alena Grabowski is studying whether prostheses give athletes a competitive advantage

Get the most out of gym days and training runs

Get the most out of gym days and training runs

Your next event can tell us a lot about the warming planet

A new study explores attitudes toward performance-enhancing drugs in the ultrarunning world

Author Caroline Paul talks to Tim Ferriss about what she learned battling blazes—and how those lessons enabled a life of adventure.

She won Olympic gold in a sport that chose her. Can she do the same in the one she truly loves?

The man who raised the possibility of the feat back in 1991 takes another look into the crystal ball

Perform your best with these top picks

With climbing making its debut in the 2020 Olympics in Tokyo, Adam Ondra is training for his first gold medal.

Screaming quads don’t stand a chance

A stunning world record of 2:01:39 resets our understanding of what it means to run 26.2 miles.

New research zeroes in on an unlikely culprit for why running gets less efficient as you fatigue.

Here's the secret to a long life: keep moving

You wear them all day every day. They should be comfortable.

The optimal number of sets in the weight room depends on whether you want to get big or strong

On the harder-to-measure benefits of age and experience

Lower back pain can be persistent and difficult to fix. These yoga poses can help.

See and be seen on evening runs, rides, and hikes

Elite athletes are turning up the thermostat in pursuit of an edge

Mentors: Hillary Allen, from the North Face, chronicles her recovery and how she’s found a new pace within the activity that she loves.

Paralympic athlete and corporate executive Patricia Walsh shares her story as part of the Garmin Women of Adventure campaign. 

Like any good piece of gear, you shouldn't have to think about your first-aid kit until you need it

Struggles with anxiety and depression can affect anyone—even the greatest performers in sports

As a Paralympic athlete and corporate executive, Walsh has been wildly successful. But her real goal is both more fundamental and more challenging: to change the perception of people with disabilities

Exactly how much power can a human produce? Scientists want to know.

The world’s best-known climber describes his approach to scaling iconic rock faces without a rope

Four years of race data from a professional cycling team unveils some differences between the sexes

Using machine learning to recognize who’s a serious competitive runner and who’s not could teach us something useful about avoiding injuries

New research finds that those who can identify and regulate their emotions keep pushing when the going gets tough

Athletes share their favorite tools for staying hydrated on the move

Don't let the long days and warm temps lull you into complacency

An in-depth biomechanical analysis of nearly everyone at the world track championships yields unexpected results

Rarely will you find a fitness tip that is equally applicable to all areas of your life

‘In Constant Motion’ follows ultrarunner, Adam Campbell, as he returns to trail running after a life-threatening fall.

The first Golden Globe Race, a solo, nonstop, around-the-world sailing event held in 1968, was a mixture of triumph, tragedy, and madness—all chronicled in a classic bestselling book and recent BBC movie. Fifty years later, 17 sailors are once again setting out for the most ambitious—and loneliest—regatta on the planet.

Protect your eyes on trails, roads, and crags with these pro recommendations

It's not just running. Two new studies confirm that weightlifting provides a similar boost to mental health.

Don't fall in the trap of more is better

While recovering from a terrible accident, the ultrarunner discovered a new part of her identity that went beyond her sport

Conventional wisdom says that drafting doesn’t matter when cycling up steep hills. It’s wrong.

Rule #3 when it comes to training for exertion in high places? Adjust your expectations.

Build a better butt to carry you through any activity

It feels good, but does it boost performance? Only randomized controlled trials can tell us.

New research compares men’s and women’s pacing patterns, and finds some telling differences

You don't have to lift less as you get older—you just have to make a few adjustments to your training

Summiting the world's tallest peak puts humans through some of the most extreme conditions on the planet

Researchers explore the psychology of running injuries

After all, you shouldn't have to pay $20 for a class every time you want to get your stretch on

Legendary gymnastics coach Christopher Sommer tells Tim Ferriss why all athletes benefit from a smarter approach to strength training

Or at least that's the thinking among the elite athletes who are adopting treatments that were once considered fringe. A former EMT turned acupuncturist weighs in on the movement.

Follow these pros' lead and turn your phone into a fitness tool

The do-it-all staples—from $11 to $515—that these multisport pro athletes can't do without