What does the amygdala have to do to with the adrenal?

Stress feedback loop: The amygdala is part of the limbic system of your brain. The limbic system responds to and regulates emotion; the amygdala assigns emotional "valence" to stimuli. It registers whether stimuli are threatening, leading to fight-flight responses. The adrenal can secrete stress hormones in response to all this, such as epinephrine, norepinephrine, and cortisol.