Post-traumatic stress disorder (PTSD) PTSD is short for post-traumatic stress disorder, a mental health condition that some people develop after experiencing or witnessing a traumatizing event. Examples of common triggers for PTSD include natural disasters, vehicular accidents, war or live combat, or violent personal assault.
Depression Sadness from time to time is just part of being a human. If your sadness goes above and beyond and transforms into hopelessness and despair, it may actually be depression. Depression deeply affects the way a person feels, thinks, behaves, and can be debilitating to your personal life.