Final answer:
The hypothalamus produces adrenocorticotropic hormone (ACTH) as a part of the physiological response to stress.
Step-by-step explanation:
The hypothalamus produces adrenocorticotropic hormone (ACTH) as a part of the physiological response to stress. In response to stress, the hypothalamus releases corticotropin-releasing hormone (CRH) which stimulates the pituitary gland to release ACTH. ACTH in turn activates the adrenal glands to release cortisol, a stress hormone that provides a boost of energy.