Work smarter, not harder! Forget spending hours on the treadmill. Check out this fast HIIT cardio challenge that will give you a complete workout in just 10 minutes.

We’re bringing you a series of HIIT workouts scientifically designed to deliver results in a short period of time. High-intensity interval training, or HIIT, is a workout style that alternates bursts of high-intensity exercises with short rest periods. Over the past few years, HIIT has been growing in popularity. Trainers everywhere are using it in workout plans, and for good reason! Recent research suggests that HIIT can give you all the benefits of a complete workout in a shortened period of time.