Extreme weight loss daily workout Four hours of hardcore exercise, including interval training, weightlifting, running, sit-ups, push-ups, football drills and more.

Join us for an exhilarating calisthenics adventure as our dedicated athlete takes on an Extreme Calisthenics Challenge under ...

While running a marathon used to be the ultimate way to push your body to the limit, there's a growing trend of pushing your body to more extreme levels of fitness -- such as obstacle racing ...

The Insanity workout is one of many high-intensity interval training or HIIT programs growing in popularity nationwide. Others include CrossFit and P90x.

To learn more about the fitness industry’s role on social media and the business of extreme fitness, Marketplace’s David Brancaccio spoke with Stephen Mayville, a licensed psychologist based ...

Apparently, not even a $14 million lawsuit from David Beckham can throw Mark Wahlberg off his extreme workout routine. The Hollywood A-lister and fitness enthusiast recently took to Instagram ...

I like workouts that burn, workouts that sear, workouts that leave me on the ground gasping for air.

In this challenge, extreme yoga pushes the body beyond normal limits. Comedian’s arrest over social media posts sparks ...

Feeling exhausted after your workout? Learn why you're so tired after working out, tricks to boost energy and ease extreme fatigue and signs of dehydration.

Inside the business of extreme fitness A conversation about how extreme fitness goals can affect our mental health.