How Many Different Muscles Do Burpees Torture?

They’re certainly a test of will. But are they also a test of strength?

How Long Must a HIIT Workout Be Before It Can Be Over?

Not long at all, actually

Your Coach Was All Wrong About the Best Way to Catch Your Breath

Never let anyone mock you again for putting your hands on your knees when the good ol’ lungs need to replenish themselves

My Very Sweaty Hour in the Climate-Change-Inspired ‘Extinction Training’ Workout Class

Because if the end times do indeed come, the most important thing is a toned ass, right?