Fifty percent of brain function, or more, is exhibited through eyes, movement and vision. Dennis Cardone More Quotes by Dennis Cardone More Quotes From Dennis Cardone Before it was cognitive rest, physical rest and that was the treatment, in the past two, three years studies have said maybe we could affect duration and the course of a concussion with some interventions. Dennis Cardone sports There is a lot of jostling and a lot of head impact. Most of the concussions are from hitting your head against an opposing player when going for a header. Dennis Cardone sports