单词	hyperarousal
释义	hyperarousal noun hy·​per·​arous·​al ˌhī-pər-ə-ˈrau̇-zəl  variants or hyper-arousal medical : excessive arousal : an abnormal state of increased responsiveness to stimuli that is marked by various physiological and psychological symptoms (such as increased levels of alertness and anxiety and elevated heart rate and respiration) Although insomnia is considered a sleep disorder, its pathophysiology suggests hyperarousal during sleep and wakefulness. Daniel J. Buysse To be given a diagnosis of PTSD, a person has to have been exposed to an extreme stressor or traumatic event to which he or she responded with fear, helplessness, or horror and to have three distinct types of symptoms consisting of reexperiencing of the event, avoidance of reminders of the event, and hyperarousal for at least one month. Rachel Yehuda Word History First Known Use 1969, in the meaning defined above Medical Definition hyperarousal noun hy·​per·​arous·​al ˌhī-pə-rə-ˈrau̇-zəl  variants or hyper-arousal : excessive arousal : an abnormal state of increased responsiveness to stimuli that is marked by various physiological and psychological symptoms (as increased levels of alertness and anxiety and elevated heart rate and respiration) Although insomnia is considered a sleep disorder, its pathophysiology suggests hyperarousal during sleep and wakefulness. Daniel J. Buysse Symptoms of hyperarousal refer to physiological manifestations, such as insomnia, irritability, impaired concentration, hypervigilance, and increased startle reactions. Rachel Yehuda
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