Why does “cutting” release endorphins?
http://www.mayoclinic.com/health/self-in… Self-injury/cutting Introduction For people who can’t fathom deliberately hurting themselves, self-injury may seem shocking and frightening. But for people who do injure themselves by cutting or other means, self-injury offers a momentary sense of calm and a release of tension. Unfortunately, that’s usually quickly followed by guilt and shame and the return of other painful emotions. And with self-injury comes the very real possibility of inflicting serious and even fatal injuries. Self-injury isn’t a specific disease or condition. Rather, it’s a type of abnormal behavior. It may accompany a variety of mental disorders, such as depression and borderline personality disorder. Because self-injury is often done on impulse, it’s sometimes considered an impulse-control behavior problem. Self-injury is also known as self-harm, self-injurious behavior and self-mutilation