Why do we sometimes derive pleasure from physical pain?

Question

For instance, if you’ve ever cut a nail too short and keep pressing on that spot, or enjoyed getting spanked during sex?

In: Biology

Answer 1

This can also help others to understand self harm, psychical pain releases endorphins like the commenter above explained well, but in addition “Therefore when someone self-injures they get a sense of calmness, numbing, and then pleasure”