Concussions have gained lay person attention over the past several years, due to high profile media stories from military conflict and professional sports. Also known as "mild" TBI, concussion affects millions of patients worldwide, many never seeking formal medical care. Concussion remains a unique injury, in that no one medical speciality "owns" the disease, leaving treatment variable across the world. Concussion is not a mild injury, resulting in a spectrum of sequelae that plague patients for weeks and even longer in a minority of cases. We will explore the downstream implications of concussion on families, employers, patients and finances, tying in clinical outcomes to social impact. For more head to: codachange.org/podcasts