Your secret weapon for back strength is a stability ball—here’s exactly how to wield it

Stability balls aren't just great for your abs. These are the best trainer-approved stability ball back exercises to add to your routine.

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Photo: Getty Images/Antonio Diaz

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.