
HIIT, otherwise known as high-intensity interval training, are workouts that are generally shorter than a traditional 60-minute gym session yet deliver the same (or better!) calorie-burning effects.
HIIT workouts raise heart rate rapidly and keep the heart pumping even after the workout is done, allowing the body to work harder than a longer, low-intensity workout. For example, a 20-minute treadmill sprint session may be just as effective, if not more, than a 60-minute light jog.



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