Until recently, scientists thought that high intensity workouts were only beneficial for specialized athletes. A recent study has discovered that short, high-intensity interval training does more to prevent heart disease, diabetes, and stroke, than more drawn out medium intensity workouts, like biking or running. Researchers found that even if the same amount of calories are burned during the workout, high intensity exercise also does more to increase flexibility and burns more body fat while creating more lean muscle tissue. So next time you need a good workout, try pushing yourself, and see if you can reach your body’s limits—of course, be safe though.