Post-Traumatic Stress Disorder (PTSD) is a mental health condition that can develop after experiencing or witnessing a traumatic event. Symptoms may include flashbacks, nightmares, avoidance of reminders of the event, and hyperarousal.. It can affect anyone who has experienced or witnessed a traumatic event, including military personnel, first responders, survivors of sexual assault or abuse, and victims of natural disasters. While the exact causes of PTSD are not fully understood, it is believed that a combination of genetic, environmental, and psychological factors can contribute to its development. Effective treatments for PTSD include therapy and lifestyle changes. With appropriate care and support, individuals with PTSD can manage their symptoms and improve their quality of life.Â