Learn more about this metric and the best training sessions to add to your schedule to boost your cardio fitness.

What if you simply don’t have that much time to completely revamp your life? This is where micro-workouts become key.

Designed by top coaches, these easy-to-follow kettlebell workouts deliver real strength and mobility gains at home.

Improving your VO2 max isn't rocket science, but it does require a considerable amount of very hard effort. You need to teach your body to use oxygen more efficiently by implementing interval running ...

At the dawn of the nuclear age, scientists created the Doomsday Clock as a symbolic representation of how close humanity is to destroying the world. On Tuesday, nearly eight decades later, the clock ...

Wondering if daylight saving time is going to become permanent or maybe disappear altogether? Here's what to know about the "spring forward" time change. Many countries around the world and most of ...