What the Decline in Firefly Populations Teaches Us About Sleep Loss and Human Lifespan, According to a Longevity Doctor

By aunderwoodSeptember 24, 2026

As a longevity doctor, I explore how light pollution harms fireflies and human sleep—and why resetting our clock is key to longevity. The post What the Decline in Firefly Populations Teaches Us About Sleep Loss and Human Lifespan, According to a Longevity Doctor appeared first on Outside Online.

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I Tracked the World’s Largest Bears in Alaska with the Indigenous Guides Who Know Them Best

Deep in the Kodiak National Wildlife Refuge, an Indigenious-owned lodge offers an intimate look at the world’s largest brown bears alongside the Alutiiq people who have shared the island with them for thousands of years. The post I Tracked the World’s Largest Bears in Alaska with the Indigenous Guides Who Know Them Best appeared first on Outside Online.

Kathleen RellihanSep 27, 2026

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Your Heavy Hiking Pack Is Destroying Your Feet—Here’s What the Latest Science Says

A new study finds that carrying more than ten percent of your body weight in your pack increases plantar pressure, causing foot injuries. The post Your Heavy Hiking Pack Is Destroying Your Feet—Here’s What the Latest Science Says appeared first on Outside Online.

aunderwoodSep 27, 2026

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LISTEN: The Relentless Pace of Rachel Entrekin

The newest Long Read on the Outside Podcast profiles rising ultrarunning star Rachel Entrekin, who is redefining what is possible in human endurance. Her secret weapon? Realistic positivity. The post LISTEN: The Relentless Pace of Rachel Entrekin appeared first on Outside Online.

awiseSep 26, 2026

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The 6 Weirdest Things That Running Does to Your Body

From needing to poop to feeling burning pain in your sides, here's how to deal with all of the gross things that happen to your body. The post The 6 Weirdest Things That Running Does to Your Body appeared first on Outside Online.

aunderwoodSep 25, 2026

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“Deadzoning” in the Wild West: I Tried on Cowboy Life at a Montana Dude Ranch

Our columnist tries out the new travel trend of “deadzoning" at a high-end guest ranch in Montana. With zero cell service, gourmet meals, and endless trail rides, he’s now considering full-time cowboy life. The post “Deadzoning” in the Wild West: I Tried on Cowboy Life at a Montana Dude Ranch appeared first on Outside Online.

Kathleen RellihanSep 25, 2026

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“It Reclaims the Joy.” Why Olympians and Enthusiasts Love Wearing Glitter in the Outdoors.

If you've sat on a chairlift, floated a river, or competed in a running race, you’ve probably seen scores of people adorned with face glitter. Contributor Kylie Mohr explains why athletes and enthusiasts love to sparkle. The post “It Reclaims the Joy.” Why Olympians and Enthusiasts Love Wearing Glitter in the Outdoors. appeared first on Outside Online.

Fred DreierSep 25, 2026

What the Decline in Firefly Populations Teaches Us About Sleep Loss and Human Lifespan, According to a Longevity Doctor

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I Tracked the World’s Largest Bears in Alaska with the Indigenous Guides Who Know Them Best

Your Heavy Hiking Pack Is Destroying Your Feet—Here’s What the Latest Science Says

LISTEN: The Relentless Pace of Rachel Entrekin

The 6 Weirdest Things That Running Does to Your Body

“Deadzoning” in the Wild West: I Tried on Cowboy Life at a Montana Dude Ranch

“It Reclaims the Joy.” Why Olympians and Enthusiasts Love Wearing Glitter in the Outdoors.