Exercise. I'm not sure what it is about exercise (increased bloodflow to the brain?) but whenever I catch myself not exercising enough my creativity also tends

Exercise. I'm not sure what it is about exercise (increased bloodflow to the brain?) but whenever I catch myself not exercising enough my creativity also tends to be at a low. I can really think a problem through when e.g. I'm skiing or swimming. Changing environments/motion. I find that I'm really creative when I'm travelling (mostly by train, driving a car is too distracting and flying is too shitty).