that seven minute workout plan is so last month. the the 4-minute workout is the new hotness for people who don’t need to lose weight and are looking to answer the question, “how little exercise can i get away with while maximizing my fitness gains?” fitness gurus and gyms with fancy equipment will be disappointed. according to the researchers, “…the workout can effectively be practiced anywhere, Dr. Tjonna says. Sprint uphill for four minutes or race up multiple flights of steps. Bicycle, swim or even walk briskly, as long as you raise your heart rate sufficiently for four minutes.”