Watch Carrie Underwood’s calorie burn with 5 mins of activity
Now you probably know that high-intensity interval training (HIIT) is one of the fastest and most effective ways to burn calories and flare in the shortest possible time. If you assume you are not exaggerating - and you provide your body with much-needed rest - countless studies has shown that among other benefits, by performing short, vigorous workouts, you will improve your cardiovascular fitness, lower blood pressure, provide immediate stress relief, stabilize…