Keep it simple. Consistency is key. Get out of your own way.

Real-world data shows elite ultrarunners average 180 steps per minute—and that means nothing

There's one realistic thing we can do to survive the new era of giant blazes: build smarter communities that can take the heat

There's a fine line between dialing back exercise during the holidays and losing your fitness altogether

New research finds weightlifters have stronger tongues and runners have better tongue endurance—and that matters

Plotting top-100 marathon times for the past decade shows that Eliud Kipchoge’s world record is a huge outlier. The question is why.

Advocates of drilling in the Arctic National Wildlife Refuge are trying to make an end run around the law and the American people. If they succeed, your backyard conservation area could be next.

Setting cycling's hour record hurts so much that it's been called death without dying. So what does it take to get past the discomfort?

What the new data says about how long the average hiker takes, what they drink, and how tired they get

At the 2016 world championships in Qatar, cyclists swallowed thermometer pills before competing. Here’s what scientists learned.

You don’t really need more gear. You need knowledge and inspiration.

The freedom to move and play outside inspires creativity and improved brain function

Ecologist Lauren Oakes’s new book, ‘In Search of the Canary Tree,’ puts a human face on a crisis we created

It's never a bad time to re-evaluate your digital addiction

Dietary fiber contains prebiotics, compounds that boost the growth of beneficial bacteria

To fuel for athletic success, consider specificity, periodization, and personalization

To become an Air Force pararescue specialist, you have to get through a brutal training course and stay underwater for a long, long time

Beat the winter blues by turning your lawn into a laboratory

A U.S. Army study aims to pin down the optimal staging protocol before high-altitude tests of endurance

Unraveling how a carbon fiber plate and space-age foam combine to make a more efficient shoe turns out to be trickier than expected

Nonprofit the Phoenix has a radical idea for those recovering from drug and alcohol addictions—get moving

Colin O’Brady thinks it’s possible—but just barely—to haul enough calories to traverse the continent. Here’s how.

What you eat changes how you feel. These foods are the best for your brain

Pioneering scientist Dr. Rhonda Patrick talks to Tim Ferriss about smarter approaches to popular lifestyle interventions

There's only one way to do 10,000 pull-ups in under 24 hours: Reset the limits of the human body

An ode to those who can't sit still

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.

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

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

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

What the admittedly confusing categorization actually means

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

As head of Cornell University's Food and Brand Lab, Brian Wansink built a career portfolio out of questionable research practices. His resignation has prompted a call for massive reforms in the profession.

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

A tweak to the CMAH gene could be key to humans' running superiority

It’s no secret that coral reefs are in trouble, however, scientists are using modern techniques to revitalize the reproduction of reefs.

The 33 special agents assigned to the Investigative Services Branch handle the most complex crimes committed on NPS land. When a day hike in Rocky Mountain National Park ended in a grisly death, ISB veteran Beth Shott hit the trail, where she began unraveling a harrowing case.

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

A small Arctic community is at risk of getting submerged by the sea. The biggest problem? It's too expensive to move away.

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

A crowdfunding project promises to bring smoother pack-carrying experiences to the masses

There's a reason that some form of the Bigfoot legend persists all over the world

An everyday athlete's guide

There really is a massive difference between weather alerts depending on where they're issued. The question is: Can you handle the heat?

From virtual-reality meditation to infrared saunas, these are the latest innovations and insights for improving your well-being

That run or bike commute might impact you more than you think

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

It's the 50th anniversary of the Wild and Scenic Rivers Act, and our waterways are in more danger than ever. These reads explain what's going wrong—and how to fix it.

Falls put 3,000 climbers a year in hospital, costing more than $20 million, according to a new study

Losing your home to a wildfire is often just the start of your troubles

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

Is it even possible to reduce the number of massive blazes that are now commonplace in the American West?

A new study bolsters the claim that afternoon or evening workouts can mess with sleep. But don’t panic just yet.

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

The benefits are still murky, but experts say there's no harm in adding more to your diet

An Italian cyclist takes aim at the sport’s most storied record, with the aid of a controversial fuel.

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

How do you protect yourself from wildfire on a warming planet? You burn everything on purpose.

Our writer and favorite curmudgeon completed UC Berkeley's ten-week Science of Happiness online course. Did it make him happier? Not really. But he still came away with some important, if obvious, rules to live by.

Exposure to extreme environments can change our DNA. Everest climbers—and their twins—are the perfect study subjects.

Lots of patient meditations on nature and one exciting outlaw drama made for Hollywood

Your body could use a boost, but a cleanse isn't the answer

Seeds of Change profiles Dr. Cliff Kapono whose work is defining the future of stewardship in Hawaii.

A massive new study confirms the mental health benefits of exercise. Don’t let the negative spin get you down.

A new podcast, "Mothers of Invention," spotlights women fighting climate change

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

A rare convergence of events turned a wildfire in the Boundary Waters into a massive burn. Two campers were right in its path.

Last week, the Interior Secretary outlined his ideas on what causes wildfire. Here's what he's right and wrong about.

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

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

There are more ways to mess up sun protection than just, you know, forgetting to use it

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

On the 30th anniversary of Shark Week, we called up some shark scientists for a no-holds-barred conversation about the impact of the pop culture phenomenon

You don’t train the same way every day. Here’s why you should periodize everything else, too.

Antinutrients are the buzzy new word in nutrition, but they're not quite what their name would imply

Keeping an eye on the interior secretary's latest ethical blunders and questionable public lands policies

You’ve heard the hype about meditation and other "non-judgemental awareness" practices. Now check out the data.