Health
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New research zeroes in on an unlikely culprit for why running gets less efficient as you fatigue.
Yes, you can work up a sweat while getting more done
A new study bolsters the claim that afternoon or evening workouts can mess with sleep. But don’t panic just yet.
Here's the secret to a long life: keep moving
The renowned meditation teacher talks to Tim Ferriss about finding freedom and joy in the present
The optimal number of sets in the weight room depends on whether you want to get big or strong
You wear them all day every day. They should be comfortable.
In 2017, the suicide rate in Durango, Colorado, was three times the national average. After 32 deaths in two years, the town's leaders banded together and instituted a range of changes with the goal of stopping the contagion. Their efforts may help other mountain towns to put an end to the grim "suicide belt" moniker for good.
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.
The breakfasts and trail snacks that get Outside staffers through long days
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
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.
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.
Your body could use a boost, but a cleanse isn't the answer
Athletes are especially susceptible to this common, curable iron-deficiency disease
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
A massive new study confirms the mental health benefits of exercise. Don’t let the negative spin get you down.
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
Shalane Flanagan and Elyse Kopecky are back with a new cookbook filled with the recipes that fueled Flanagan's historic win at the New York City Marathon
Exactly how much power can a human produce? Scientists want to know.
Garmin and Apple are among a recent wave of companies who’ve entered the stress tracking market. Do the products live up to their claims?
Eight products used by athletes and expert adventurers to protect their faces from the elements
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
A host of companies are offering easy, snackable paleo options that you can order online
Eating for endurance can be tricky, but it doesn't have to be
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
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
‘In Constant Motion’ follows ultrarunner, Adam Campbell, as he returns to trail running after a life-threatening fall.
The iconic adventurer and businessman talks to Tim Ferriss about staying fit, managing risk, and never, ever panicking
You’ve heard the hype about meditation and other "non-judgemental awareness" practices. Now check out the data.
These pros spend their days in the high alpine and dry desert. Here's how they protect their skin.
In 2015, in a secret medical procedure carried out in Bogota, Colombia, the 44-year-old woman got dozens of experimental gene-therapy injections. Why? Because Parrish, the creator of a longevity company called BioViva, believes that science is on the cusp of delivering radically longer lifespans—and she wants to help bring on the revolution.
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.
Stave off midday munchies with these editor-approved options
Legendary surfer Laird Hamilton has dedicated himself to health and wellness, and these are his rules for living your best life.
Protect your eyes on trails, roads, and crags with these pro recommendations
Scientists point the finger at the brain chemical adenosine for the endurance-sapping effects of mental fatigue.
A more restful night is just a wireless snore-neutralizing soundscape generator away
It doesn’t always tell the full story. Independent testers have arrived to fill in the gaps.
Meltzer's secret to success? An unorthodox diet.
It's not just running. Two new studies confirm that weightlifting provides a similar boost to mental health.
Don't ride on empty. Eat something that’s good enough to feed the pros.
When it comes to our appetites, we’re no different than our caveman ancestors
Getting older doesn't have to keep you from setting new PRs
A study of the stress-reducing powers of wilderness explores “levels of nature.”
Summertime means our favorite foods are in season. Eat up.
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.
The little green legumes are having a moment in the plant-based fitness world
Build a better butt to carry you through any activity
Echo of the Wild, from filmmaker Mathieu Le Lay, follows a horse caretaker named Nelu who lives high in the Apuseni Mountains.
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
The 29-year-old CEO of Outdoor Voices is taking on Nike, one color block at a time
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.
It's the one-stop shop for healthy fuel. Here's a grocery list, plus meal ideas for how to best use the store's cheap, high-quality ingredients.
Six pro endurance athletes weigh in on the foods that keep them energized for the long haul
Follow these pros' lead and turn your phone into a fitness tool