5 surprising, myth-busting facts about high-intensity interval training

HIIT may have seemed like just another workout trend, but sports medicine doctor and fitness instructor Jordan Metzl, MD, says its benefits are so powerful, he prescribes it.

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Photo: Stocksy/Aleksandar Novoselski

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.