overarousal

/ˌoʊvərəˈraʊzəl/
noun
  1. A state of being too excited, alert, or stimulated, often leading to anxiety or difficulty focusing.
    • Overarousal before a test can make it hard to remember what you studied.
    • The loud music caused overarousal in the toddler, making him cranky.
    • Athletes sometimes experience overarousal before a big game, hurting their performance.
Synonyms