Throughout my ultra-endurance sports career, I pushed my body to extremes that were dangerous and unhealthy; I took my love of running and my passion for Ironman triathlons too far and almost died ...

This 20-Minute Cardio Workout Spikes Your Metabolism for 36 Hours Without Stepping Foot in a Gym originally appeared on Men's Fitness. Can't get to the gym but need to get some cardio in? Changes are ...

Get ready to work out with fitness trainer Natalie White, who will be leading this 30-minute no-repeat cardio workout joined by Luisa Fonseca and Dustin Ripkens. In this routine, you'll start off with ...

The fitness industry and its influencers have long preached toxic ideas of what a cardio workout needs to look like in order to “count”: that you have to burn a certain number of calories, feel ...