6 Ways Interval Training Can Completely Transform Your Body

Sources:  Metabolism: Wayne Westcott, PhD, instructor of exercise science at Quincy College; Happiness: Michele Olson, PhD, professor of exercise physiology at Auburn University at Montgomery; Time Commitment: The Journal of Physiology; Willpower: Journal of Sports Sciences; Weight Loss: International Journal of Obesity; Ability to Go and Go: Journal of Sports Science and Medicine MORE: 3 Quick Calorie-Burning Interval Workouts