PTSD

Posttraumatic stress disorder is a severe, often chronic, and disabling disorder, which develops in some persons following exposure to a traumatic event involving actual or threatened injury to themselves or others. PTSD is characterized by intrusive thoughts, nightmares, and flashbacks of past traumatic events, avoidance of reminders of trauma, hypervigilance, and sleep disturbance, all of which lead to considerable social, occupational, and interpersonal dysfunction.