How to make mountain climbers more manageable, according to trainers

The move ain't easy, so I asked some fitness pros how to do mountain climbers without constantly stopping for breaks—the key is your mind and your core.

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Photo: Getty Images/AzmanJaka

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.