The latest wearables have gotten much more accurate at logging our Zzzs. Too bad researchers haven’t figured out how we should use the data.

A new study tests the performance claims of Omius’ unique looking headband worn by Olympic legends Sifan Hassan and Eliud Kipchoge.

I cried after my doctor told me I needed to stop running, but listening to that advice saved my spine

Researchers were once convinced that some people have a bigger training response than others—but the data says otherwise

Speaking publicly about depression or anxiety can be healing for athletes, but not everyone wants to become a spokesperson for mental health

Running uphill is a beast. Improving your form in these ways can make getting up a steep incline feel like less of a battle.

Acrobat Wines are rooted in Oregon’s wildly varied terrain and made for the active, outdoor lifestyle

According to experts, your body’s natural reaction to an intense workout could be interfering with your watch data

It’s the first time an American or a Chinese runner has won the prestigious 57K trail race that serves as a de facto global trail-running championship

After a year that included a maelstrom of controversy, the world’s most prominent ultra-trail running event has righted its path

A Swedish company’s baking soda formula was the hottest supplement at the Olympics. And now a new study finds that it really works.

With endless stretches of white sand and outdoor adventures for everybody, Alabama's Beaches will amaze you

33,000 feet of elevation gain in the French Alps, an average time of 40 hours on course, and the pressure of this sought-after race make it one of the most challenging. Did we mention the charcuterie?

The most-anticipated annual event of the trail running universe takes place from August 26 to September 1

Researchers in New Zealand used athlete data to pick up patterns in how we recover. Their insights are surprising.

If you feel like your athletic performance is falling short, this new research might explain why

Here’s how to pack for minimalist travel so your stuff doesn’t limit your adventures

The longevity influencer, doctor, and bestselling author wants to change the way we take care of ourselves. Does it work?

Since the beginning of women’s sports, a question has loomed: who qualifies as female?

New technology is distorting track records. Ethiopian running legend Kenenisa Bekele makes the case that his world records are superior to the current ones.

Tired of sports injuries? Try animal flow—a form of quadrupedal movement training (QMT)—before and after your run, bike, or climb.

Everyone knows how to run. Now biomechanical analysis may teach us how to do it better.

Elevate your fitness this summer with Hoka’s vertical Strava challenge

Military scientists have developed an equation for how many calories it takes to haul weight in different ways

This iconic New England city has the scenic routes, lively community, and year-round events that runners of all experience levels can appreciate

A new study suggests men and women should address age-related declines in aerobic capacity quite differently

TikTokers are beseeching us to get off the treadmill and into the weight room. They might have a point.

A selection of (mostly) new titles for fans of science, endurance, fitness, and adventure

Many athletes believe that the more time they spend in the gym, the fitter and more competitive they’ll be, but that's usually not the case.

“Predictive processing” offers novel ways to think about sports psychology, the limits of endurance, and the urge to explore.

Our Sweat Science columnist tries out the heat adaptation protocol used by Oregon runners, and survives (barely) to tell the tale.

A trove of ethnographic data reveals that persistence hunting—early humans relying on superior traits to chase down prey—was a worldwide phenomenon

Wunderkind Jakob Ingebrigsten may have lost (again) on Saturday at the Prefontaine Classic, but don’t expect his unorthodox training approach to disappear

Hard training and good genetics give elite runners an edge, but the four-minute barrier may have its own magic

Scientists are finding that the subjective perception of time during exercise is more complex than expected.

Having a high VO2 max is great, but research is showing that the key to elite performance is maximizing something called fatigue resistance

Athletes train for years to overcome pain, exhaustion, and fatigue. But some people take it too far and are never the same again.

Cycling has always been touted as easy on the knees. But actually preventing arthritis? That’s a new one.

In a recent study, transgender women athletes performed better at some strength and fitness metrics than cisgender women—and worse at others

More than 30,000 runners celebrated the 128th annual marathon with sunshine and blue skies. Athletes from Ethiopia and Kenya dominate the elite fields.

It's the thing I see countless teachers get wrong when creating a sequence

The fitter you get, the more likely you are to feel that you can’t get enough oxygen during hard exercise

They both have benefits. Here’s how to use them to feel and perform better.

Contrary to what scientists once thought, even superficial cooling is enough to interfere with muscle oxygen supply.

Not as soundly as you’d expect, actually

Short workouts can make you stronger, but longer workouts are better for building muscle, according to new research

After being diagnosed with postural orthostatic tachycardia syndrome (POTS), I wondered what was possible for my body

Look around the start line of an endurance race and you don’t see many tall competitors. Look on the podium, and you never see any. Why is that?

Avalanche victims need to be located as quickly as possible. But a newly published case report shows that occasionally, someone beats the odds.

The benefits of training your mental skills are, by definition, all in your head. So how do we prove that it works?

The quest for adequate support can make running less efficient by forcing your breathing muscles to work harder, new research finds

How do you make the best of a golf addiction? Add running.

Marijuana is still a banned substance for athletes, but new research is chipping away at the idea that it makes you faster

The logic is good and the anecdotes are common, but the evidence is shakier than expected, researchers find

There isn’t a ton of data on resistance training for women, so researchers pooled it to look for patterns

New research suggests exercise may boost the “love hormone,” the latest in a long line of brain-boosting molecules

The pursuit of performance in a bottle inherently undermines our attempts to get faster, stronger, and healthier, our Sweat Science columnist argues

Data from a charity ride before last summer's Tour shows some obvious differences and surprising similarities to data from the pros.

New research explores the minimum effective dose of resistance training and the health effects of overdoing it

InsideTracker’s massive database of more than 23,000 runners shows that more mileage is associated with better biomarkers

SIRO is partnering with Ramla Ali and Jonah Kest to develop a world-class wellness experience

Adults will take recreational cues from their children, “unprocessed” will become a marketing asset, and rodents will show us the way to eternal life. 

It turns out you can absorb more carbohydrates than sports nutritionists thought. But does it actually make you faster?

We try to gain a competitive edge from things like nutrition, recovery, weight training, and new shoes. But what if becoming a parent does the trick?

Over the past century, “maximal oxygen uptake” has turned out to be a valuable marker of both endurance and health.

The guidelines for returning to training after giving birth are “vague and inconsistent.” That’s no surprise.

You won’t freeze your lungs exercising outdoors this winter, but there are reasons to be cautious about inhaling extremely cold air

Want to ride like Pete Stetina? Learn how he and other top athletes use Wahoo’s latest tools and technology to achieve their goals—and how you can too.

Fancy new midsole materials like PEBA make you faster, but at the cost of durability

While a light jog or quick weights session might help clear out lingering congestion, there are times when exercise might actually do your body (and others) more harm than good

When to take cues from your body and rest, and when to treat soreness with medication

Joint health is a cornerstone of staying active as you age. Not sure how to work on it? Start with these seven expert tips.

To ward off cognitive decline, a new analysis suggests that strength matters more than how much muscle you have

People all over the place are creating outrageous unofficial athletic contests that are equal parts grueling and just plain silly. What’s going on?

The new science of skill acquisition can help coaches and athletes get more out of their workouts

News flash: All that data you’re mining may not be good for your health

Scientists want to know why we don’t keep getting bigger and stronger forever

A new federal law, the Rodchenkov Act, has the potential to dramatically clean up international sports. A case involving a Texas doping ring illustrates how the new legislation works.

After two new marathon world records, it’s time to reevaluate why marathoners are getting faster and what comes next

Toss out the marathon prediction equations. Understanding what determines ultra performance takes a whole different approach.