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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 pain relievers

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.

Watch how coach Lara Rogers helps women excel in professional running and pursue their wildest goals

All the digital training data in the world may not tell you whether your workout was any good

Replenish your energy and stay strong

A rigorous new study finds small changes in heart rate and subjective feelings of recovery. Do they matter?

A new study of athletic career trajectories finds that early success is less meaningful than you’d think

We often focus so much of our stretching on our legs, but athletes need to focus just as much time and energy on their upper body

Researchers assess the potential benefits—and downsides—of the hundreds of bioactive compounds in your morning brew

Here’s what the experts say

A trainer breaks down her go-to moves to maintain healthy hip abduction

When it comes to your recovery, you’re likely neglecting this section of your spine. Here’s how to offer it some relief.

Tramadol has a long history of suspected abuse among cyclists, and now there’s enough data to put it on WADA’s banned list

It’s time to integrate these trainer-approved exercises into your recovery regimen

When illness or injury forces you to take a complete break, researchers have some ideas on how to limit the fall-out

Sports scientists weigh in on the trends that will keep the PRs coming

With these moves, you'll hit the slopes feeling strong and powerful

Analyzing glucose data from endurance athletes offers new(ish) insights, with the potential of more to come

With no weights required, you can do this workout anywhere

They don’t necessarily save energy, but a new study suggests they might save your legs

To optimize your health or supercharge your training, you sometimes need to look beyond the lab

After seeing more and more people join in on this outdoor fitness craze, I decided to try it for 30 days

You may want to reframe how you think about that discomfort

There are both healthy and harmful ways to get away from it all, psychologists point out

A high-tech approach called metabolomics offers a new perspective on how your body bounces back from 26.2 miles

Same stretch. Less discomfort.

Fine-tune your muscle imbalances with this workout finisher series from physical therapist assistant and personal trainer Lee Welton

Records are falling and times are dropping. Is it the shoes, or something else?

She knew she was going to be the best triathlete in the world one day. But first she had to learn to swim.

And three stretches to do right now

It’s time to perfect your squat form. By avoiding these errors, you’ll finally be able to do just that.

The latest research suggests that muscle oxygen can detect exercise thresholds, with no blood required

Researchers present new findings on mental fatigue, mental training, and the importance of your surroundings

These movements will help you build functional leg strength

Scientists consider the latest spikes, individual variability, and the pros and cons of training in racing shoes

Here’s how to maximize the benefits of that “hurts so good” feeling

Physicians and researchers weigh in on the benefits and disadvantages of having hypermobile joints

It’s a bit simpler than you might think

A certified personal trainer breaks down what you actually need to know about lifting and running

Scientists reconsider the assumption that it only helps strength and power athletes

Because of all the gear you buy for your rides, your helmet may be the most important