Throughout time, the lasting effects of trauma have been called many things: "nostalgia," "soldier's heart," "shell shock," "combat fatigue." Today, we use the seemingly more scientific term "post-traumatic stress disorder," but what exactly is PTSD and how is it defined and diagnosed by psychologists?

Welcome to Psychologia, the podcast where we explore the science behind why we do what we do. www.psychologiapodcast.com