Post-traumatic stress disorder (PTSD) is an Anxiety Disorder and a term for the psychological consequences of exposure to or confrontation with stressful experiences which involve actual or threatened death, serious physical injury or a threat to physical or mental integrity and which the person found highly traumatic. Symptoms can include re-experiencing phenomena such as nightmares and flashbacks, avoidance of reminders and emotional detachment, and hyperarousal with sleep abnormalities, extreme distress resulting from personal “triggers”, irritability and excessive startle. Experiences likely to induce the condition include rape, combat exposure, natural catastrophes, violent attacks, childhood physical/emotional abuse. PTSD often becomes a chronic condition but can improve with treatment or even spontaneously.