Mild traumatic brain injury, directly associated with chronic traumatic encephalopathy, presents a crisis in contact sports, the military, and elsewhere. This book reviews current understanding of mTBI, methods of diagnosis, treatment, policy concerns, and emerging technologies. This book details the neurophysiology and epidemiology of brain injuries by presenting disease models and descriptions of nucleating events. This book characterizes sensors, imagers, and related diagnostic measures used for evaluating and identifying brain injuries and relates emerging bioinformatics analysis with mTBI markers. The book goes on to discuss issues with sports medicine and military issues, it covers therapeutic strategies, surgeries, and future developments and finally addresses drug trials and candidates for therapy. The broad coverage and accessible discussions will appeal to professional in diverse fields related to mTBI, students of neurology, medicine, and biology, as well as policy makers and lay persons interested in this hot topic.