Habits of a Happy Brain: Retrain Your Brain to Boost Your Serotonin, Dopamine, Oxytocin, & Endorphin Levels

by Loretta Graziano Breuning

So if you took the drastic step of inflicting pain on yourself to get a rush of endorphin, it would take more and more pain to trigger the same good feeling.

Is this why people cut? They get an endorphin boost?