Outdoor activities such as biking, climbing and hiking keep you active during the warmer months. Learn more about snow sports like bobsledding and the Iditarod to keep you moving this winter.
Do I have to use film for wildlife photos?
How the Adventure Cycling Association Works
Extreme Sports Athletes Crave the Reward, Not the Risk
Bike Helmets That Look Like Toy Hair Could Get More Kids to Wear Them
Junko Tabei, the First Woman to Conquer Everest, Has Died
How Fish Fraud Works
Zion National Park Overrun by Tourists, RSVP May Soon Be Required
How Taxidermy Works
Land Rover Goes Off-road in the City
Top 5 Truck Killers on a Typical Ranch
5 Luxury Services That Cost Nothing in the Wild
From the 5K to the Marathon, American Runners Are Slowing Down
How Curling Works
Are triathlons safe?
The Kids Are All High
Why Using the Term 'Dry Drowning' Could Do More Harm Than Good
The National Park Service is considering making RSVPs mandatory for Zion National Park, as crowds have overrun the park.
By John Perritano Jul 28, 2017
U.S. runners are taking longer than ever to cross the finish line. But why?
By Shelley Danzy Jul 20, 2017
"Dry drowning" sounds scary, and is all over the news. But is it even a real thing?
By Jesslyn Shields Jun 21, 2017
Think people who do things like jump out of a plane in a kayak have a death wish? A small 2017 study suggests otherwise.
By John Donovan May 19, 2017
The 20-year-old athlete became the first woman to enter the marathon, and officials tried to physically stop her. They couldn't.
By Christopher Hassiotis Apr 19, 2017
People who take on the 26-mile run may be prone to acute kidney injury, a condition that can cause swelling, pain and even seizures.
By Shelley Danzy Apr 6, 2017
Catch up on those missing zzzz's by spending some time in the great outdoors.
By Kate Kershner Feb 9, 2017
In the 20th century, Roger Bannister ran the first ever sub-four-minute mile. Will the 21st century see humans running a marathon in under two hours?
By Julia Layton Nov 16, 2016
In an effort to encourage kids to wear helmets, designers looked to the iconic, Lego-esque plastic hair of Playmobil toys.
By Laurie L. Dove Nov 8, 2016
Tabei, also the first woman to reach the highest peak on all seven continents, spent her life challenging social norms and championing environmental causes.
By Christopher Hassiotis Oct 26, 2016
New research finds that bike helmet airbags are pretty darn effective at protecting your noggin from traumatic brain injuries.
By Jonathan Strickland Oct 6, 2016
Whether they're scrambling up 750-foot Hong Kong skyscrapers or climbing up the world's tallest church, urban climbers are daredevils with a pretty insane view.
By Kate Kershner Sep 29, 2016
Luke Aikins plummeted at 120 mph, risking his life in a daredevil stunt. Physics saved him.
By Christopher Hassiotis Aug 2, 2016
That red snapper you're enjoying for dinner might well be tilapia since 87 percent of snapper in the U.S. is mislabeled. Why is fish fraud so widespread?
By Melanie Radzicki McManus
A quixotic aquatic attempt to traverse the ocean between Florida and Bermuda got the Coast Guard involved, and not for the first time.
By Chris Opfer May 11, 2016
Meet the technology-driven products helping bicyclists take aim at safer riding conditions.
By Laurie L. Dove Feb 22, 2016
What does a Kiwi know about the American campfire classic, anyway? Well, he sure knows drama...
By Laurie L. Dove Feb 2, 2016
Land Rover's urban off-road track, aka the Discovery Sport Experience, shows drivers what they're missing as they commute to work each morning.
By Kristen Hall-Geisler Jan 29, 2016
Aside from being fit, male endurance athletes may have an evolutionary advantage by simply being more attractive to the opposite sex. Let's look at the science behind it.
By Maria Trimarchi Jan 4, 2016
Participating in a turkey trot fun run may be a great way to work off Thanksgiving dinner, but it could have a long-term impact on your community, too.
By Laurie L. Dove Nov 25, 2015
You're running or biking, but you're quickly running out of steam. Then suddenly — BAM — you get a rush of energy. What's going on?
By Maria Trimarchi
Long-distance running is inherently challenging and requires strength and endurance. Try running a 26.2-mile race backward, and you've added even more challenges to the feat!
By Laurie L. Dove
Waterfall massages and mineral baths sound really soothing (and pricey) right about now. But you don't have to go to your day spa to get them –- you can savor them for free in the great outdoors. Which other luxury services fit that bill?
Going off the grid will take away the stress of being constantly connected, but are there real health benefits associated with natural living?
You want to help the environment and connect with nature, but you're not ready to move off the grid and live in a hut. Is there a middle ground?
The Terrific, The Tasty and The Tense: Our Best Stories You Might Have Missed This Week
The Monster Star That Refuses to Die: Could Antimatter Be Fueling Its Supernovas?
How Does the U.S. Senate Expel a Senator?