Post-Traumatic Stress Disorder (PTSD) is a mental health condition that can develop in individuals who have experienced or witnessed a traumatic event. These events could include natural disasters, accidents, combat, assault, or other life-threatening situations. PTSD is characterized by a range of symptoms that persist long after the traumatic event has ended. These symptoms can include intrusive memories or flashbacks of the trauma, nightmares, severe emotional distress when reminded of the event, and physical reactions such as sweating or a racing heart. Individuals with PTSD often experience hypervigilance, avoiding situations or places that remind them of the trauma, and may have difficulties with concentration and sleep.