Seven is founded on scientific research that high intensity workouts with as little as 7 minutes gives you the majority of the benefits of working out regularly. So, by doing Seven daily you get 80% of all benefits of working out regularly in the shortest possible time.
HIIT workouts include short bursts of intense bodyweight exercise. The research shows that this type of workout is better for fat burning than steady-state cardio (think: running at a steady pace for extended periods of time).
Learn more about HIIT here.
An added benefit? The quick rest intervals in Seven not only keep your workouts short, they help keep your heart rate up, boosting your cardio fitness.