Editor's note: Adam Rees is Founder of GRIT GYM, a gym based on results, creating a culture and lifestyle of performance, strength, health and freedom. This is the last of a two-part series on cardio ...

This monolithic view of cardiovascular training may be helpful for introducing cardio to fitness newbies because yes, any cardio is better for your heart and body than none. But in reality, not all ...

CAMP HOVEY, South Korea - In lessons learned from semi-pro athletes, university coaches and Army master fitness trainers, Soldiers competed in a series of challenges designed to combine the best of ...

Alex Hutchinson is a National Magazine Award-winning journalist and Outside’s Sweat Science columnist, covering the latest research on endurance and outdoor sports. Over time, squeezing out an extra ...