"Posttraumatic stress (PTSD) is a common reaction to traumatic or stressful events. Studies indicate 3.5% of the United States (U.S.) population will experience PTSD in any given year. Almost 37% of these cases can be classified as “severe.” Someone with PTSD may relive a traumatic experience through memories and dreams. They may avoid reminders of the trauma to prevent emotional distress. PTSD can also involve memory issues and a heightened reactivity to one’s surroundings. PTSD takes many forms. It may happen due to a natural disaster or a personal tragedy. It may arise immediately after an experience or years later. People of any gender, ethnicity, and background can experience it. Posttraumatic stress is a treatable condition. People with PTSD may wish to contact a therapist. Therapy can help people process distressing emotions and memories. Understanding one’s symptoms is often the first step to reducing them."