Why only three minutes?
Some research suggests that quick, high-intensity workouts can produce many of the same physical benefits as workouts that are slow and steady. And those benefits often continue even after the workout is over.
“[After working out], your body continues to take in more oxygen that it would have if you hadn’t worked out, and this continues for several hours,” explained Altman. “If your body is taking in more oxygen, you’re burning more calories, and that can contribute to things like your metabolism rate.”
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