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Lifetime Stressor Exposure and Psychophysiological Reactivity and Habituation to Repeated Acute Social Stressors

Ella McLoughlin, Rachel Arnold, Paul Freeman, James E. Turner, Gareth A. Roberts, David Fletcher, George M. Slavich, and Lee J. Moore

( McLoughlin et al., 2021 ). When exposed to acute stressors (e.g., delivering a speech), the nervous system responds immediately by activating the sympathetic–adrenal–medullary (SAM) system, which stimulates increases in heart rate and blood pressure ( Turner et al., 2021 ). The endocrine system also responds