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Adrenergic Activation

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Adrenalin/epinephrine is a neurotransmitter produced by and released from the adrenal glands. Release of this chemical activates the sympathetic nervous system through the alpha-adrenergic and beta-adrenergic receptor families and produces the classic “fight-or-flight response” including increased blood pressure, heart rate, and respiratory rate. While this system is adaptive in the context of acutely stressful events, prolonged stress can produce a chronic overactivation of the adrenergic system. This overactivation is implicated in the development and progression of chronic health problems including hypertension and coronary artery disease.


Sympatho-Adrenergic Stimulation

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Correspondence to Debra Johnson .

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© 2013 Springer Science+Business Media, New York

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Johnson, D. (2013). Adrenergic Activation. In: Gellman, M.D., Turner, J.R. (eds) Encyclopedia of Behavioral Medicine. Springer, New York, NY.

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  • Publisher Name: Springer, New York, NY

  • Print ISBN: 978-1-4419-1004-2

  • Online ISBN: 978-1-4419-1005-9

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