They’re running themselves ragged — and possibly fast-tracking Father Time. Ultramarathons are surging in popularity, with more than 100,000 North Americans racing beyond 26.2 miles last year, nearly ...

A recent study revealed that extreme exercise damages red blood cells and accelerates ageing.Running is said to be the most studied kind of physical activity with proven benefits across the body, ...

Extreme endurance running damages red blood cells in ways that may affect their ability to function properly, according to a ...

Elite athletes who have run a mile in less than 4 minutes tend to live longer than the general population, according to a retrospective study. The study adds to a growing field of research ...

Explore whether it’s possible to out-train a bad diet in this extreme fitness experiment. After consuming over 6,250 calories of fast food, I pushed my body through an intense day of training, ...

Extreme heat makes it especially hard for your body to cool down, so you need to be extra careful if you exercise or play sports when it’s baking outside. Your brain tries to keep your body within a ...

Running isn’t for everyone. Even the most extreme fitness enthusiasts dread the concept. We all likely know some people who absolutely love the exercise, but let’s face it, if you’re reading this, ...

Extreme heat makes it especially hard for your body to cool down, so you need to be extra careful if you exercise or play sports when it's baking outside. Your brain tries to keep your body within a ...

"P90X Generation Next" will be led by Waz Ashayer. His leadership marks an exciting new era for the iconic P90X brand. “P90X remains one of the most powerful names in fitness, and with ‘P90X ...