I’m a Triathlete, and This Is How I Improve My Cardiovascular Endurance

A triathlete reveals his ultimate tip on how to improve your cardio endurance, which doesn't involve logging all of the miles that you'd think.

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Photo: Getty Images/filadendron

16 Upper Glutes Exercises Personal Trainers Swear By for a Stronger Butt

Why your upper glutes deserve more love, and the best exercises to strengthen them.

woman doing an upper glutes exercise with an exercise band.