The primary function of the adrenal cortex is the production of steroid hormones, including glucocorticoids, mineralocorticoids, and androgens. These hormones play crucial roles in regulating metabolism, immune response, and blood electrolyte balance. For example, cortisol, produced by the adrenal cortex, helps manage stress and influences glucose metabolism. Maintaining proper adrenal function is vital for overall health, as imbalances can lead to various disorders, including Addison's disease or Cushing's syndrome, affecting bodily processes and homeostasis.