How can running barefoot reduce injuries?
The simple answer, you allow your feet to operate as evolution intended. Running barefoot strengthens your feet and all associated systems used for running. As the theory goes, barefoot running allows your feet to function as nature (or God/ gods/ or whatever you happen to believe) intended. Modern shoes limit the movement, thus function, of the feet. This limitation of movement is then responsible for interfering with other biomechanical aspects of running (ankles, knees, hips, back, etc.) The result is an increase in injury. Even Nike agrees!