hyperarousal

Etymology

From hyper- + arousal.

hyperarousal means A state of heightened psychological and physiological tension resulting in reduced pain tolerance, anxiety, excessive response to sensory stimulation, insomnia, and fatigue. Lexicurio rates it Sui generis — a strength score of 88 out of 100.

noun

A state of heightened psychological and physiological tension resulting in reduced pain tolerance, anxiety, excessive response to sensory stimulation, insomnia, and fatigue.“Hyperarousal after a traumatic experience is normal. It occurs when a person's brain believes that person is at risk again because it misreads an external signal or trigger.”