16 mile run and now my jazz chops are smokin

Another long 16 mile run to build some aerobic strength. I always notice greater creativity when I sit at the piano to improvise after a long run. I believe that the endorphins, the chemicals released by the body that are responsible for the "runner high" as well as some other physiological changes occur, to enhance creativity. I think I just played my best improvised jazz that I have ever done after sitting at the piano about 1 hour after my run. I am not sure why every serious musician doesn't take exercise as serious as their instrument. I think exercise is essential for well being and creativity.