Many people believe that in order to lose fat and weight they must do extensive amounts of cardiovascular training for long periods of time. This is seen in most gym settings by people who hog a machine to themselves and play an entire movie sound track. If this type of training was all that was needed for weight loss most everyone at the gym would be fit. The real key to cardiovascular training is Interval training. What is interval training? To keep it short, short bursts of high intesnsity cardio followed by a rest period. A good starting point would be 30 seconds of high intensity cardio followed by 90 seconds of