This document discusses sport psychology and concussions. It provides an introduction to the field of exercise/sport psychology and how psychological interventions can improve physical performance. It then focuses on football and concussions, how sport psychology is leading efforts to better understand and prevent concussions through improved detection and treatment methods. It also examines case studies of NFL players and discusses characteristics and risks of concussions, especially in younger athletes. General information on concussion rates, risks, diagnosis, treatment recommendations and prevention strategies are also summarized.