According to Wikipedia (HIIT) High intensity interval training is a form of interval training, a cardiovascular exercise strategy alternating short periods of intense anaerobic exercise with less intense recovery periods, until too exhausted to continue. The perfect workout for the person with a busy schedule should last about 30 minutes should be done 3 days a week . Can help you lose fat  Can reduce Heart rate can reduce Blood Pressure  You lose weight, not Muscles You increase your Metabolism Burn a lot of calories Can reduce Blood Sugar Firm up Body Choose your activity eg. Jumping,Running,Biking  then you can figure out duration, (HIIT) is of course a very intense type of…