Medical Dictionary

hyperalert

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adjective hy·per·alert \ˌhī-pər-ə-ˈlərt\

Medical Definition of hyperalert

  1. :  extremely or excessively alert Symptoms of PTSD can include insomnia, irritability, being hyperalert to danger or feeling on edge.—Phyllis Furman, The Daily News (New York), 1 Mar. 2012

hyperalertness

noun

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