Which body system in Seyle's general adaptation syndrome (GAS) model is responsible for regulating various body processes, including digestion, immune-system responses, emotion, and energy expenditure?

Question

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The hypothalamic-pituitary-adrenal (HPA) axis is responsible for regulating various body processes, including digestion, immune-system responses, emotion, and energy expenditure, which are all affected by the stress response in Seyle's General Adaptation Syndrome model. The HPA axis releases cortisol and other stress hormones that activate the body's response to stress.

Which Body System in Seyle's General Adaptation Syndrome (GAS) Model