An individual who has encountered a large black bear while camping out in the woods with friends will most likely experience an increase in all of the following hormones except __________.

A frightening encounter activates the body’s fight-or-flight response. Epinephrine and norepinephrine rise quickly, and cortisol also increases as part of the stress response. Progesterone is not typically increased by this acute stress response, so the exception is progesterone.

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