HIIT workouts are a type of workout where you combine short bursts of intense effort with periods of rest. It has many benefits..some of which are listed in an article below including cardiovascular and metabolic benefits. Best of all, they typically do not take a lot of time to do.
Read the article or watch the video below about HIIT then try out a HIIT workout sponsored by GROUP HIIT (EVEN beginner levels will be hard)