At the neural level, surprise is taxing. The brain constantly forecasts the next moment; when reality diverges sharply, prediction error spikes. The free energy principle (Friston, 2010) frames this as a costly gap between expectation and input, prompting rapid updates that flood attention and physiological arousal. In abrupt change, the amygdala, locus coeruleus, and the HPA axis coordinate alarm—noradrenaline heightens vigilance and cortisol mobilizes resources—producing the felt ache of disorientation.
This cascade is protective in real threats, yet it also amplifies distress during benign disruptions, like sudden job shifts or relocations. Pain arrives before interpretation, priming us to resist. Psychology helps explain why that resistance persists. [...]
