Do endorphins help in healing?
On a personal note, I intuit some sort of important relationship between endorphins and the epithelial cells in the skin. The evidence of this is found in people who distress their skin for dimly understood reasons (self-cutters, suntanners, tattoo devotees, nail-biters, piercers). Maybe their curious interest in mild or severe distress to their skin is a way of tricking nature into releasing endorphins. Who knows?
