Running is one of the few great activities that can cause both euphoric pleasure and mind-numbing pain at the same time. If there's one thing worse than a running injury, it's never reaching your true potential as an athlete.
The foot is complex; it has 33 joints and huge neurological potential. It is supposed to be able to maneuver and adapt to different terrains and communicate with the brain about whole-body balance and proprioception. Proprioception is the feedback loop between your body and brain that allows your brain to know where your body is in space.