The biggest thing to happen to the fitness world in the past year has been Rumble Boxing. It's taken over NYC and it's spreading across the country. Some of the biggest names in the world stop by to get their sweat on. The man leading that charge at Rumble Boxing is Noah Neiman and if you don't get motivated listening to his story you might need to check you pulse. He explains why he thinks Rumble Boxing has taken off and what his personal struggles have been along the way.