overarousal

noun

over·​arous·​al ˌō-vər-ə-ˈrau̇-zəl 

: excessive arousal

Anger-prone individuals are readily aroused and reactive, suggesting overarousal of the autonomic nervous system.

—Richard J. Davidson

: the state of being excessively aroused

This workshop presentation provides practical consideration of the scope and nature of Attention Deficit Disorder, which is characterized by children's impulsivity, emotional overarousal and other behaviors.

—Irene Wood

Being tantalizingly close to an unexpected victory can cause what sports psychologists call overarousal. The body produces excess adrenaline while restricting blood flow, tightening the muscles and depleting fine-motor skills.

—Newsweek

Word History

First Known Use

1957, in the meaning defined above