Want to get in shape on your coffee break? Try insta-workouts—just don't get carried away.

What Twight rails against is mediocrity of effort. I’d drunk heavily from his rancid punch, and in a strange way I looked forward to more.

Inside the maddening new world of online training

Uncle Sam's Presidential Fitness program was once a Herculean feat. Now it endorses video games. When did we go so soft?

Our correspondent tests out one of the wackiest fitness hybrids yet: a full-body-throttling rower on wheels

Spring is here. Time to wipe the cobwebs off your bike, oil your chain, and kick your fitness into a new gear. Here's how.

Put that weekly jog to rest and take your training to a new level with our guide to technique, gear, and recovery

Know why, when, and how to fuel with our complete guide to the athlete's diet

Can Viagra really improve high-altitude performance?

Go with the flow, say ChiRunners, and your legs will follow

Our man Nick Heil puts himself through the ringer in his fitness column.

Rule number one for total physical fitness? Where your back goes, all else follows. Keep yours in top shape with our guide to strength, flexibility, and injury treatment.

Can a performance supplement be legal, healthy, and effective? The Lab Rat pops a fistful to find out.

With the latest iPod evolution, our human guinea pig turns on, tunes in, and...drops out?

To find your limits, you must go past them

A tourism industry hobbled by years of civil war and political instability looks to rebound as Nepal makes moves toward a lasting peace. Is it finally safe to go back?

Knees are critical joints, and they can't be traded in like last year's cell phone. Keep your hinges state-of-the-art with our complete guide to strength, conditioning, and injury prevention.

Get the most out of long summer days with featherweight performance gear for running, riding, climbing, and hiking

The man who defined steep and deep meets a tragic end

Surrounded by the beauty of the world's highest range, thousands of people live without sight. The Himalayan Cataract Project is curing blindness—literally overnight—in the most remote villages of Nepal and India. And, hey, as long as you're performing mass miracles, why not run up a 21,000-foot peak?

Think Utopia doesn't exist? Maybe not yet—but these ten towns are making a play for perfection with adventure-friendly innovation and cool ideas for building smart communities. Plus the hottest concepts in urban revival, combating sprawl, and better hometown living.

Bill Phillips, the most successful fitness author in history, is a Colorado recluse who got his start teaching muscleheads how to use steroids. He's cleaned up his act—his Body-for-Life program runs street legal, and it works—but he's still banking on a timeless American urge: Everybody wants to be huge.

Be the first to bag the Seven Plummets—the deepest spots in each of the Seven Seas

Eight friends. Four volcanoes. Nine days. A primer on self-guided ski mountaineering.

Don't be put off by the funny equipment—functional training builds real-world skills in the gym

Will Earth's most fragile unexplored ecosystems survive the age of adventure?

An avalanche in Tibet takes the life of Alex Lowe

New School Skiing is teaching good old hotdogging some radical new tricks