Endorphins. Many of us do those things that are considered a challenge often because subconsciously we know a feeling of well being and euphoria will follow. There is much written about physical exercise and the morphine-like effect of the release of endorphins by the central nervous system and pituitary gland. Recently, more has been written about similar affects of exercising the brain when writing. I know that when I have successfully penned a few pages, I do experience that good feeling felt after a hearty physical exercise. That said, I typically will not feel inclined to write when I am less than chipper. So, one could argue that to have a successful write, maybe one needs to exercise first. The overall impact will be a double high of sorts. But wait, what if you are not up for exercise? This may be a chicken and egg dilemma.