The four core symptoms of are (1) frequent, intrusive recollections of a traumatic event; (2) numbing of emotional responsiveness, (3) avoidance of stimuli that tend to trigger memories of the traumatic event: and (4) increased physical arousal associated with anxiety.

posttraumatic stress

Explanation:

Posttraumatic stress disorder is an anxiety disorder characterized by a set of physical, psychic and emotional signs and symptoms. This situation occurs because a person has been the victim or witness of violent acts or traumatic situations that posed a threat to his or her life. When this person remembers the fact, he relives the episode as if it was occurring at that moment and with the same feeling of pain and suffering experienced the first time. This memory, known as revival, triggers neurophysiological and mental changes, such as:

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