Have you ever experienced that? That said feeling is what the athletic and science communities refer to as “runner’s high”.
I remember having a personal experience with “runner’s high”. I was running on the University of Chicago track. I was on my third lap, almost 3/4 of a mile, so naturally I was slowing down. I wanted to make a mile; that was my goal. I began to notice how tired I was since I had not run for that distance since i could remember. I started to doubt myself. I distinctly remember almost giving up. At my quitting point something snapped in my head that gave me a burst of energy.
I picked my feet up, breathed deeply and kept pushing. In fact, it felt like some supernatural force was pushing me. I felt like something else was in control. To end the story, I ended running two more laps without stopping! That was runners high.
This feeling of euphoria has baffled scientists overtime. For a while, there was debate on how it is caused and whether or not existed to begin with. Regardless, athletes have always been familiar with the feeling, which is activated at different milestones of exercise and with different intensities per individual.