One researcher surveyed the emotions of two ultra-runners. They ran for a 10-week period and covered 3641 kilometers (2262 miles) across Europe. The route included a variety of terrain including flats and mountain ranges such as the Pyrenees.
Researchers found the following:
-the more physical exertion they expended, the more their mood intensified
-four key factors: mental stamina, motivation to test one’s limits, friendliness with their partner, and self-awareness
The results of the test showed: when people do amazing things, they feel more energetic in other areas of their lives.
Johnson, U., Kenttä, G., Ivarsson, A., Alvmyren, I., & Karlsson, M. (2016). „An ultra-runner’s experience of physical and emotional challenges during a 10-week continental run”, International Journal of Sport and Exercise Psychology, 14 (1), 72-84