The impact of mild traumatic brain injury extends far beyond the gridiron – concussions can happen anywhere, including playing fields, bike paths, and war zones. Kenneth Kutner, PhD, who specializes in head injuries and has been the team neuropsychologist for the New York Giants for 30 seasons, joins us to talk about what the latest research has revealed about concussion and how it affects physical health and cognitive function. From the military to the NFL, and even in the corporate boardroom, this invisible injury is finally emerging from the shadows. Plus… why don’t woodpeckers get concussions?