You Won't Believe How Short This Expert Says Your Workout Can Be

Extract:

To lose weight, you don't always need to spend hours at the gym. In fact, HIIT, or high-intensity interval training, has been proven to be one of the best ways to burn more calories and target belly fat. But just how short can you get? Try just four minutes, according to Tabata program director and head coach of Lock Box LA, PJ Stahl

Full article: http://www.popsugar.com/fitness/Why-Shorter-Exercise-Better-36723155