Hedonic Adaptation

The observation that the pleasures of success and the ignominy of failure abate with time. Used to generally describe how the emotions revert to ‘baseline’ levels even after following a pleasant or unpleasant event. Considered a ‘psychological immune system’ that helps individuals cope with, minimize, and eventually forget the upsets of life.

Reference:

Sheldon, K. M., & Lyubomirsky, S. (2012). The challenge of staying happier: Testing the hedonic adaptation prevention model. Personality and Social Psychology Bulletin, 38(5), 670-680. https://doi.org/10.1177/0146167212436400