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| Description: The stress pathways of the body include the autonomic nervous system and the HPA axis. Both systems converge on the adrenal glands. The autonomic response involves stimulation of the adrenal medulla of the sympathetic nervous system, resulting in the release of epinephrine and norepinephrine—chemicals that stimulate the fight-or-flight response. Activity of the HPA axis results in stimulation of the adrenal cortex, which releases cortisol into the bloodstream.
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