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Health

A new study found that people who cram all their exercise into a couple of days a week—so-called weekend warriors—reap similar health benefits as people who work out throughout the week

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Winter can be a tough time for athletes. Motivation an issue? Or can’t do your favorite workout? No problem. This comprehensive guide will help you stay fit all winter long.

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New data from 2.5 million marathon finishers finds that subtle changes in air quality can affect your race time

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Ben Patrick is better known as the Knees Over Toes guy: a viral internet personality who believes that the oldest rule in the weight-training book is dead wrong. Our writer tried his protocol to see if it could solve his chronic pain.

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New data shows that the biggest difference between elite and middling runners is how much time they spend jogging

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Let’s be real. In 2025, we’ll still be planning our adventures last-minute and scrolling on our phones before bed.

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The rendered fat is up against butter, olive oil, and face creams in some households

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Everyone knows taking time off is good for you—in theory. Maybe these new results will convince you to actually do it.

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It’s time to throw your training plan out the window. Welcome to the new rules of fitness and nutrition.

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This six-ingredient recipe will help you refuel ahead of your next workout

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Getting yourself a new pair every so often can help you perform at your best and avoid injury

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Simplify your fitness routine as you travel for the holidays with this customizable full-body workout

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A commercial for Secret’s whole-body deodorant says the product will make women “smell great all day, all hike, and all night.” But why should that even matter?

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Nailing down the perfect moment to have one, experts say, doesn't need to be complicated

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Keeping your muscles cool will supercharge the benefits of aerobic training, new findings suggest

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By triggering a diving reflex, athletes who perform breath-holds can increase red blood cells—and, possibly, endurance

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The key to stretching properly is knowing when to do static or dynamic stretching

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Social media is leading you astray; plain old water still reigns supreme

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22 months. 5 continents. 149 performances. And 6 ultras. As the Eras Tour finally wraps, here it is by the numbers.

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Scientists crunched the numbers to come up with the single best predictor of how long you’ll live—and arrived at a surprisingly low-tech answer

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A veterinarian by day and ultrarunner by night, Paris became the first woman to complete the notoriously hard race this year

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A selection of (mostly) new titles for fans of science, endurance, fitness, and adventure

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We asked our team to share the lip balms they swear by—whether that's a $4 drug store pick or a $28 luxury product

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After years of rumors, new data suggests that real-time lactate sensors are finally ready to hit the market. But will athletes know what to do with them?

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Don’t wait until January 1 to start making positive changes in your life. Set yourself up for success with these health-focused Black Friday deals.

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'Gladiator II' hits theaters on November 22. Here's what we know about how real gladiators ate and exercised.

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It’s perfectly OK to lean into your hunger cues

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And how it is sabotaging your training

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Your calf muscles are most likely a little weak and really tight. Here are our favorite stretches and exercises to take care of them.

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The $1.2 billion company has some of the biggest podcast bros and athletes touting its praises. Is the greens powder the answer to our health woes?

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Whether you’re hiking over rough terrain or going for a walk around the block, rucking is an easy way to add in resistance training

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Rinsing it under water for a few seconds won’t cut it

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Outshine Santa this year without breaking the bank

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Keep your ears and buds clean in three simple steps

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More evidence emerges that muscle-fiber type matters—if you can figure out which type you have

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Scientists recently examined the physiology of the increasingly popular open-ended race format—running 4.167 miles every hour—pioneered by Gary Cantrell.

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A worn-out sports bra can impact performance. Here’s how to know when it’s time to ditch yours.

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From Swedish Fish to fun-size Twix, I tested Halloween candy as fuel for long runs. Here’s how they compare to traditional sports nutrition—and ones that won’t haunt your training.

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Just because you can doesn’t mean you should

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We lose power more quickly than strength as we get older. Researchers are trying to understand why—and how to fight back.

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Strengthen your core for improved balance and stability on your next run, hike, or climb

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I like to glam up for my outdoor adventures. Here's how and why I do it.

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Critics say the first sub-2:10 marathon was impossible—and fueled by doping. Our columnist examines the science as he tries to make sense of the backlash.

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Figuring out the best time to eat your meals doesn't have to be so confusing—here's what you should know

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After learning how to spearfish with her dad, she fell in the love with the sport and shares why catching fresh fish supports her overall wellness

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Between rock-climbing professionally and running a nutrition-bar business, DiGiulian looks for products that pull double duty and save her time

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Leading researcher Daniel Moore weighs in on myths, truths, and misconceptions about how much protein athletes need

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Recovery from substance use disorder, for Gregory Gourdet, involves running. Here’s how he nourishes himself before hitting the trail.

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Research on athletes who are experienced meditators finds better “response inhibition” and superior endurance

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Go the extra mile, literally, with a protein-dense version of the viral pantry staple

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The latest wearables have gotten much more accurate at logging our Zzzs. Too bad researchers haven’t figured out how we should use the data.

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A new study tests the performance claims of Omius’ unique looking headband worn by Olympic legends Sifan Hassan and Eliud Kipchoge.

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These TikTok-approved recipes are packed with nutrients and taste like dessert

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I cried after my doctor told me I needed to stop running, but listening to that advice saved my spine

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Researchers were once convinced that some people have a bigger training response than others—but the data says otherwise

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Sports nutritionists love to recommend high protein intake. Kidney specialists aren’t sure that’s a good idea.

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Speaking publicly about depression or anxiety can be healing for athletes, but not everyone wants to become a spokesperson for mental health

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Running uphill is a beast. Improving your form in these ways can make getting up a steep incline feel like less of a battle.

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According to experts, your body’s natural reaction to an intense workout could be interfering with your watch data

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It’s the first time an American or a Chinese runner has won the prestigious 57K trail race that serves as a de facto global trail-running championship

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Rising global temperatures allow mosquitos to breed for longer—and to spread more deadly diseases, like EEE

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