Studies have suggested that re-experiencing a traumatic event can become an addiction of sorts. the evidence suggests that the reason for this is:

Respuesta :

Studies have found that experiencing the trauma over and over enhances the production of the endogenous opioid peptides. These peptides can create an addiction to this trauma. These peptides bind to the opioid receptors in the brain and assist with motivation, emotion, attachment behavior, the response to stress and pain, and the control of food intake.