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PTSD is marked by clear biological changes as well as psychological symptoms. PTSD is complicated by the fact that people with PTSD often may develop additional disorders such as depression, substance abuse, problems of memory and cognition, and other problems of physical and mental health.
Trauma- and Stressor-Related Disorders. Post Traumatic Stress Disorder (PTSD) is characterized by symptoms that include intense fear, helplessness, and/or horror that a person experiences following an exposure to a traumatic event. The traumatic event can include an actual or threatened death or a threat to oneâs or another personâs physical integrity.