After the morning run there is a feeling that nothing worse can happen to you today. I think that is the meaning.
yyy: You people's brain is arranged so that it seeks to bring the body to maximum balance - homeostasis))) To feel well you did nothing, saved strength and accidentally did not harm yourself. Therefore, your brain does not approve of running and physical exercise. But you can trick a little and put into the run element of the game. Imagine yourself as a flight hero. The deceived brain will give you adrenaline and more endorphins to this enterprise if you can escape and the brain will be saved.