The function of the adrenal glands in the human body is to produce and release hormones that regulate various physiological processes. These glands, located atop each kidney, secrete hormones such as cortisol, which helps manage stress and metabolism, and adrenaline, which prepares the body for a fight-or-flight response. The adrenal glands also produce aldosterone, which regulates blood pressure and electrolyte balance. Their hormones are crucial for maintaining homeostasis and responding to environmental changes.