90-DAY HIKES, LOTS OF VEGGIES
John Mackey, CEO of Whole Foods, lives a spartan life.
A new wave of blood and DNA tests promise to help customers get fitter.
EATING A LITTLE FUNNY
Jimmy Kimmel, host of ABC's Jimmy Kimmel Live!, explains how he plans to get that Gandhi body we all crave.
NEVER MISS, NO EXCUSES
Skip Bayless, co-host of ESPN's First Take, has only missed cardio day twice since 1998.
HOW BEST TO CELEBRATE FRIDAYS: WITH A PAINFUL WORKOUT AT DAWN
Burpees and bench jumps with the most disciplined workout crew on Wall Street.
JOE DESENA'S SPARTAN EMPIRE
Meet Joe Desena, the masochistic godfather of Spartan Race.