What is the Hypothalamic-Pituitary-Adrenal (HPA) Axis?
The HPA axis is a complex set of direct influences and feedback interactions among three endocrine glands: the hypothalamus, the pituitary gland, and the adrenal glands. This axis plays a crucial role in the body's response to stress, regulating various physiological processes including digestion, the immune system, mood and emotions, and energy storage and expenditure.