Why Do Digital Fitness Devices Still Count Calories, Even Though We Know the Numbers Are Wrong (and Potentially Harmful)?

The calorie counters on fitness trackers are notoriously wrong—and harmful. So why do digital devices still rely on them?

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Photo: Getty Images/Youngoldman

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.