By Howe Russ Naturally, if you walked up to anybody at your local gym and asked them if they would like to learn how to get a six pack in 3 minutes they would probably jump at the chance. Of course, everybody believes such things to be nonsense. However, if you're looking into how to build muscle you are about to discover why HIIT can produce very good results in less than half the time of regular resistance training. Gone are the days when people need to spend hours working out in the gym after a long, busy day at the office. Nowadays you...