Channel your angst, inner anguish and deepest frustrations into an upper body, daily, workout that will transform how you feel; change how you move and totally make you feel better about yourself inside and out. The Punch Out! Challenge will help you pile up the numbers. In addition this will help your cardiovascular and aerobic fitness, help decrease your resting heartbeat, increase your base metabolic rate. It will also help increase your upper limb speed which is no bad thing either.