"henry works the night shift at a convenience store. he sees a man entering the store with his hood up, hands in his pockets, and eyes darting around. this causes henry's stress level to surge. at times of stress, pituitary hormones activate the gland(s), which release(s) other hormones, including that travel throughout the body and brain to provide a general "wake up" message."

I believe the answer is:  adrenal; cortisol

Adrenal gland had the function  to produce adrenaline. This adrenaline would increase our alertness everytime we are experiencing a certain level of stress.  Cortisol on the ohter hand, would suppress our immune system and increase the rate of our metabolism when we are experiencing stressful situations.

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abu bakr, was a senior companion and—through his daughter aisha—a father-in-law of the islamic prophet muhammad. abu bakr became the first openly declared muslim outside muhammad's family. abu bakr served as a trusted advisor to muhammad.