HomeLibraryGlossaryHyperarousalGlossary · General TermsHyperarousalA state in which the brain and body remain highly alert, tense or ready for danger. Where this comes upHow Brain Chemicals Can Contribute to AnxietyHow Symptoms Can Help Guide Antidepressant SelectionHow Brain Chemicals Can Contribute to OCDHow Brain Chemicals Can Contribute to PTSDHow Does Buspirone Work?ClonidineHow Does Clonidine Work?How Does Levomilnacipran Work?Previous termHTR2CNext termHypervigilance