It's easy to get confused when searching for the Irvine office of Dr. William Kessler-if you're looking for anything resembling a conventional doctor's office, that is. One might not expect to find it in the back of a gigantic fighting gym labeled NO LIMITS. To see the doctor, you must first walk by a wall of mixed-martial-arts gear and merchandise for sale, around the boxing ring where athletes you might have seen on TV are furiously training, past a full-scale caged octagon, and through an array of punching bags hanging from the ceiling... More >>>