I Couldn't Be More Positive
Serving as his own lab rat, an amateur bike racer spent a year taking supplemental testosteronerumored to be a peloton favoriteto find out if it could transform an average Joe. His conclusion? No doubt about it.
The Mutants Next Door: Fittest Real Athletes
They don't have sponsors, and they're not getting paid to train. But these day-job-holding athletes compete like elites. Follow their lead and you can, too.
G.I. Joe and The House of Pain
An exclusive look inside the cutting-edge Army lab that's pinching, prodding, dunking, bruising, and building the soldiers of tomorrowand revolutionizing adventure fitness along the way.
Plans of Attack
Think you don't have time for a fitness routine? If you can block out a couple of hours during the week and some longer periods on weekends, the results will amaze you.
Fast and Furious
The three secrets of hyper-efficient fitness
Shorter. Harder. Smarter.
Getting fit doesn't have to mean more time training. Just more sweat.
What is the easiest way to lower my marathon time?
How can I train for a long hike?
Barefoot Running Training Plan
The 8 Essentials of Barefoot Running
Barefoot-inspired shoes are flying off the shelves, and they're poised to transform the way we run. Here's how to make the most of running with less.
Faster. Higher. Squeakier.
In 2007, molecular biologist Ron Evans flipped a genetic switch on test mice and turned them into super-athletes. Headlines ensued, as did nervous references to human applications and "exercise in a pill." Evans is still toiling away in the lab, and guess what? The day is coming.