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Evolution favors flatter paths when fitness outcomes are equal, study finds
A surprising discovery by Technion researchers sheds new light on the dynamics of evolution.
Biden’s praetorian guard in the media now feigns concern about presidential fitness
I told you this was coming. I was right.
How Reju Is Turning Polyester Textile Waste Into New Materials
Reju is developing a process that separates polyester from blended fabrics and turns it back into material for new clothes—like base layers, fleeces, and shells. The post How Reju Is Turning Polyester Textile Waste Into New Materials appeared first on Outside Online .
These lululemon Labor Day ‘We Made Too Much’ Picks Will Help You Gear Up For Fall Training
lululemon’s ‘We Made Too Much’ section is loaded with running gear just in time for Labor Day.
How to Watch the 2026 Sydney Marathon
Around 40,000 runners will be out on the course, with some of the fastest marathoners in the world leading the elite fields.
Poorly Fitting Shoes Caused an Injury That Sidelined Me for 6 Months. This Is What I Wish I’d Known.
I wanted to be a “real runner” so I ignored every red flag—but I should have checked my ego at the door.
Tested on 200s and 5Ks, the Hyperion Elite 6 Is the Fastest Brooks Shoe Yet
Brooks’s latest racer gets softer PEBA foam, a sharper rocker, and high marks from testers.
The Man Who Ran a Marathon a Day for 143 Days—on a Prosthetic Leg
A new documentary revisits Terry Fox’s extraordinary 1980 journey across Canada.
Coaches Reveal the Signs They Look For That You Could Run a Boston Qualifying Time
Maybe it’s time to add the Boston Marathon to your bucket list.
Garmin’s Beginner-Friendly Forerunner 55 Is 35% Off Right Now
It’s a discontinued model, so this might be your last chance to get one.
How to Increase Your Fiber Without Wrecking Your Long Runs
Eating fiber supports health and performance, but for runners, timing matters. Here’s how to increase your daily intake, then taper it before a race to reduce the risk of GI distress.
Bandit’s New City Limits Collection Blends Performance Tech With Everyday Style
Here are the the pieces we’re most excited about at Runner’s World.
REI’s Labor Day Sale Is Here: Shop These 6 Running Shoe Deals Before They’re Gone
Top picks from Altra, Adidas, Nike, and more are up to 30% off.
5 Reasons Your Pace Is Getting Slower—and What to Do About It
If you’re noticing your pace inching down, run after run, it’s time to dig into a diagnosis. Here’s what could be holding you back.
The Runner’s World Guide to Strength Training: Expand Your Strength Repertoire
Our exclusive program provides all the strength exercises you need to improve your running.
‘It Was Magic’: American Ben Dhiman Dominates UTMB to Become the First Runner in History to Break 19 Hours
The Cincinnati native won the race by more than 30 minutes and became the second American man to claim the title.
2026 UTMB Results: Blandine L’Hirondel and Ben Dhiman Take Victories
It was a historic day at the 108-mile trail race in Chamonix, France.
The Runner’s World Guide to Nutrition and Fueling: Understanding Carbs, Protein, and Fats
Learn how each macronutrient supports your energy and recovery—plus how to adjust your intake as your training changes.
‘I Can’t Believe It’: Blandine L’Hirondel—an OB/GYN Doctor—Stuns the Field to Win UTMB
The French athlete ran the fastest time in race history to earn her first UTMB title over Americans Rachel Entrekin and Emily Schmitz.
Here Are the Results from the 2026 Sydney Marathon
The race is in its second year as a World Marathon Major.
Addisu Gobena Wins the Sydney Marathon in a Thriller—and Smashes the Course Record
The 21-year-old Ethiopian averaged just over 4:45 per mile.
I Asked Run Coaches How They’d Spend $300 to Become Better Runners. Here’s Exactly Where They Put the Cash—and Why
New gear isn’t always the answer.
My HRV Was Concerningly Low. Improving It Helped Me Have My Best Training Block to Date.
I used HRV trends to rethink my training—and ended up with a half marathon PR.
The Runner’s World Guide to Nutrition and Fueling: Underfueling
Identify the signs of underfueling as a runner and learn how to combat it.
I Blamed My Training Fatigue on a Running Slump. A Nutrient Deficiency Was the Real Culprit.
Why low vitamin or nutrient levels could be at the root of your extreme fatigue, soreness, and performance decline.
The Best 20-Week Marathon Training Plan for First-Time Runners
With four to five runs per week, you’ll toe the starting line healthy and confident—and cross the finish as a marathoner.
The Plushest Running Shoes for Base-Building Miles, Injury-Prone Runners, and Future Marathoners
These bouncy, comfy, cushioned shoes are like lightweight mattresses under your feet.
Our Nepal Expert Answers the Biggest Questions About the Devastating Floods
Ben Ayers has lived in Nepal for the last 25 years, and worked as a rescuer during the 2015 earthquake.
LISTEN: The 19-Year Search for Michelle Vanek, Part 1
The latest Long Read on the Outside Podcast is the first half of our story on the search for Michelle Vanek, a 35-year-old mother of four who vanished in 2005 on a hiking trip.
The Ultimate Trail Running Kit
Any terrain, any conditions. The Brooks Cascadia Collection is designed to help you run better and more comfortably wherever the trail takes you. The post The Ultimate Trail Running Kit appeared first on Outside Online .
The Grand Canyon’s Mooney Falls Are Taller Than Niagara—and More Dangerous. Here’s How to Hike Them.
Everything you need to know about Mooney Falls: how to secure permits, navigate the chain descent, and reach the 200-foot turquoise plunge.
A Climber Dropped His Backpack in a Crevasse in 1963. The Ice Just Gave It Back.
A 1963 crevasse fall cost climber Alfred Rothfischer his gear. Decades later, melting Alpine ice revealed his long-lost backpack and tools. The post A Climber Dropped His Backpack in a Crevasse in 1963. The Ice Just Gave It Back. appeared first on Outside Online .
Your Road Running Gear Will Fail You on the Trail. Here’s What to Replace First.
Trail running is booming. Before you follow the crowd into the woods, you need new gear. Here's what's most important. The post Your Road Running Gear Will Fail You on the Trail. Here’s What to Replace First. appeared first on Outside Online .
No Trail Shoes? Here’s How to Hike Safely in Sneakers and Not Wreck Your Feet, According to Podiatrists.
Don’t have trail shoes?
The Grand Canyon Was Rocked by a Flash Flood. One Person Is Dead and More than 20 Hikers Are Still Missing.
A flash flood in the Grand Canyon left over 20 people missing, destroyed key footbridges, and forced mass evacuations near Phantom Ranch.
Discover South Carolina’s Largest Coastal Town
Mount Pleasant has it all: fun festivals, local flavors, coastal wildlife, paddling adventures, and more The post Discover South Carolina’s Largest Coastal Town appeared first on Outside Online .
Before You Run Shirtless on Vacation, Check the Local Laws. One Runner Found Out the Hard Way.
Running somewhere new? The neighborhood rules may matter as much as your route.
Rachel Entrekin Is Ready to Take What’s Hers
Ultrarunning’s newest star broke out by beating the entire field at this year’s Cocodona 250. But she’s been winning races outright for nearly a decade. Why are we only now learning her name?
The 8 Sleekest, Comfiest Workout Leggings for Women Runners
These smooth leggings pack plenty of storage while keeping you warm.
He Set Out for a Day Hike on Granite Peak, Montana’s Highest Mountain. An 800-Foot Fall Killed Him.
A 21-year-old hiker from Bozeman was found dead following a fall on Granite Peak, Montana’s highest mountain. The post He Set Out for a Day Hike on Granite Peak, Montana’s Highest Mountain. An 800-Foot Fall Killed Him. appeared first on Outside Online .
A Personal Trainer Explains How the Monk Plank Challenge Will Make You a Better Outdoor Athlete
A certified trainer tries the viral monk plank challenge and breaks down how its brutal hip and core demands translate to trail strength. The post A Personal Trainer Explains How the Monk Plank Challenge Will Make You a Better Outdoor Athlete appeared first on Outside Online .
These 11 Brooks Running Shoes Will Help You Run Your Best Miles Yet
From the Ghost to the Glycerin, Brooks is our go-to brand for comfiest trainers.
A Report Says Trump Is Trying to Give Away Part of Yosemite. The Feds Say It’s Fake News.
A bombshell report on Friday alleges the National Park Service of trying to execute a land exchange inside Yosemite National Park for a private road.
The Ultimate Adventure Weekend
Legendary vehicles. Live music. Off-roading and mountain biking and films and campfire feasts. It’s an epic weekend. It’s Destination Defender. The post The Ultimate Adventure Weekend appeared first on Outside Online .
Jack Johnson Is 51. Surfing Keeps Him Fit, but Farming Gave Him Something He Didn’t Expect.
Mellow rock star Jack Johnson shares how, beyond surfing and making music, farming on O‘ahu’s North Shore has given a new outdoor dimension to his life.
The Best Marathons for First-Timers
These races are easy to get into and have longer time limits than more famous races.
UTMB 2026: Who’s Racing in Chamonix and How to Watch Trail Running’s Biggest Race Live
Your guide to the 2026 UTMB start lists, livestream details, and top contenders, including the GOAT, Courtney Dauwalter.
This All-In One Camp Kitchen Comes With Running Water at the Push of a Button
The Cinch Kitchen Cruiser isn't perfect—but the standing-height prep space, sink, and faucet more than make up for its flaws. The post This All-In One Camp Kitchen Comes With Running Water at the Push of a Button appeared first on Outside Online .
Our Favorite Adidas Shoe for Speedwork Is on Sale for Just $77 Right Now
Its thick Dreamstrike+ midsole makes it well-cushioned and super bouncy.
Quad-Dominant Running Can Slow You Down. Take This Test to Spot (and Treat) the Imbalance
Here’s how to balance out your lower leg muscles to get faster and avoid injuries.
The Runner’s World Guide to Nutrition and Fueling: How to Fuel Before, During, and After Your Run
The right fueling strategy can help you run stronger, recover faster, and avoid common mistakes that leave many runners exhausted.
‘At 68, I Can Still Break 3:30 in the Marathon. Here’s How I Train to Keep Running Fast.’
I’ve traveled the globe for marathons, and I’m not done yet. Here’s how I got faster in my 60s.
Draw Inspiration From the Phrases Noah Lyles, Emily Sisson, Clayton Young, and Other Elites Use When Runs Get Hard
Top U.S. runners shared mantras, affirmations, and bible verses they rely on—use them to build your own mental toolkit.
9 Sneaky Culprits Behind Your Bad Run—And How to Avoid Them Next Time
Bad runs happen, but they don’t need to become your norm.
Your Essential Guide for the 7 Abbott World Marathon Majors
From how to gain entry, when to apply, and what to expect, we have you covered on everything world majors.
I’ve Logged 5,773 Miles With the Garmin Fenix 8. The Fenix 9 Has New Features That Make Me Want to Upgrade
Faster mapping and titanium casing make these burly watches even more useful in harsh conditions.
This 40-Minute Strength Workout Saves Me So Much Time and Energy—Without Sacrificing Gains
These smart supersets help runners build power, prevent injury, and get out of the gym faster.
The 16 Best Deals at the REI Labor Day Sale
REI’s Labor Day Sale is a big deal amongst gear heads. Namely because it’s full of big deals. The post The 16 Best Deals at the REI Labor Day Sale appeared first on Outside Online .
Australia Banned Climbing Uluru. Now a New 40-Mile Trail Offers a Better Way Around It.
For decades, over a million visitors climbed Uluru, one of the world's largest monoliths, against the wishes of its Traditional Owners.
A Cyclist Was Stranded in Extreme Heat. A Memorial Shelter Saved Them
A stranded mountain biker on Colorado's Palisade Plunge found life-saving shade at a memorial shelter built for a rider who died on the same trail. The post A Cyclist Was Stranded in Extreme Heat. A Memorial Shelter Saved Them appeared first on Outside Online .
Why Humidity Makes Running So Much Harder—and What to Do About It
Despite cooler temperatures, running can feel hard when humidity levels are high. Experts share tips for running better in humidity. The post Why Humidity Makes Running So Much Harder—and What to Do About It appeared first on Outside Online .
Our Best Value Running Headphones Are Down to Just $25
Our Best Value Headphones pick is sweatproof, secure, and down to just $25.
A Hiker Tried to Free Solo a Cliff in Georgia While Wearing Sneakers. Rescuers Saved Him.
Wearing running shoes and a backpack, a hiker attempted an unroped ascent of Mount Yonah, a popular climbing crag in Georgia.
LISTEN: We Traveled to Rural Japan to Investigate the Country’s Deadly Bear Problem
The latest Long Read on the Outside Podcast takes listeners to Akita Prefecture in northern Japan, ground zero for the country's bear problem.
Initial Reports Said a Climber Was Stung by Wasps 100 Times. Here’s the Real Story.
A climber was airlifted after 12 wasp stings. Here’s how aggressive ground nests form and why anaphylaxis moves fast in the backcountry. The post Initial Reports Said a Climber Was Stung by Wasps 100 Times. Here’s the Real Story. appeared first on Outside Online .
Dolly Parton’s Smoky Mountain Roots: How the Legend Transformed Her Tennessee Home
Remembering the music icon’s legacy across Sevierville, Pigeon Forge and Great Smoky Mountains National Park The post Dolly Parton’s Smoky Mountain Roots: How the Legend Transformed Her Tennessee Home appeared first on Outside Online .
The 6 Best Toe Separators That Can Help Prevent Injury and Relieve Pain
These are ideal for runners with tight or achy feet.
The 9 Best Running Shoes for Wide Feet and Big Toes
Don’t subject yourself to cramped feet—these running shoes are the comfiest and roomiest.
Want to Run Twice a Day? Here’s When Doubles Can Actually Improve Your Training
Coaches explain what you should already be able to do in training before building volume with doubles.
Experts Say SUP Deaths Have Quadrupled in Recent Years. The Culprit? Your Ankle Leash.
Ankle SUP leashes can turn deadly in flowing water. Experts reveal why waist leashes save lives on rivers—and how to choose the right gear. The post Experts Say SUP Deaths Have Quadrupled in Recent Years. The Culprit? Your Ankle Leash. appeared first on Outside Online .
This City Was Just Named America's Fittest—for the 9th Straight Year
Arlington, Virginia, again takes the top spot in the ranking of the country’s 100 largest cities.
7 Moves Doctors Recommend for Plantar Fasciitis
Foot stretches and exercises can help relieve this painful condition and keep you running.
6 Budget Running Watches That Deliver Accurate GPS, Long Battery Life, and Much More
Not-so-average watches for the average runner.
“Disheveled and Scared.” Two Brothers’ Bear Encounter Ends in a Backcountry Rescue Near Grand Teton.
Two disoriented men were rescued from Wyoming’s Thorofare Valley—the most remote region in the Lower 48—after a harrowing encounter with a bear.
I Survived a Knife Attack in the Grand Canyon. Here’s What It Was Like.
Alexis Rowan was celebrating her birthday in Havasupai when a random knife attack changed everything. She shares her story of survival, trauma, and recovery. The post I Survived a Knife Attack in the Grand Canyon. Here’s What It Was Like. appeared first on Outside Online .
The 8 Best Massage Guns for Workout Recovery
A short massage can do wonders before or after a long run.
The 10 Best Running Headphones to Keep You Motivated
Open-ear options continue to get better and more versatile.
The Fall 2026 Issue of Outside Shows How Style Can Pull You into Another World
There’s no shame in coming to the outdoors sideways—through a store window, a magazine, or a shirt that made you feel badass. The post The Fall 2026 Issue of Outside Shows How Style Can Pull You into Another World appeared first on Outside Online .
Workout patch delivers some of the benefits of exercise with no exertion
Injecting muscle cells beneath the skin of mice led to a patch of self-contracting cells that boosted their muscle mass, bone density and even markers of good brain, immune and liver function
A Rugged, Soft-Sided Duffel That Actually Stays Organized
Kitworks Adventure Duffel keeps everything in its place—and is tough enough to sling on top of a bus. The post A Rugged, Soft-Sided Duffel That Actually Stays Organized appeared first on Outside Online .