One of the best events you can volunteer for as a medical student is your local marathon. You learn about musculoskeletal injuries, heat injuries, electrolyte emergencies, as well as prepare yourself for the occasional seizure, cardiac arrest, and case of anaphylaxis. You learn procedures like starting IVs, obtaining vitals, and basic wound care. It really is a great place to learn the basics of Emergency Medicine. In this episode, we will discuss marathon related emergencies.