The endorphins are the natural way of our bodies to relieve from stress and pains. In essence, the endorphins are a hormone released mostly by the brain, but also by the other parts of the nervous system.
In a way, we can say that the endorphins are the natural opiate of the body, helping us to feel good, or at least better, in situations where the body is under certain stress or pain.
Answer: A moko on the face is the ultimate statement of one's identity as a Māori. The head is believed to be the most sacred part of the body. To wear the moko on the face is to bear an undeniable declaration of who you are.