This Is the Best HIIT Workout, According to Science

Any HIIT (high-intensity interval training) session has major fat-burning benefits, but a 4x4 workout is tops for improving fitness.

HIIT Is Officially The Best Exercise For Burning Belly Fat

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Benefits of HIIT Training and Workouts

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22 best HIIT workouts for all levels

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How Long Should A HIIT Workout Last To Maximize Fat Loss? - BuiltLean