This 4×4 Workout Structure for Longevity Provides Short Bursts of ‘Good Stress’

A new study shows that 4x4 HIIT workouts are the best thing you can do in terms of physical fitness to lengthen your healthspan.

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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.