This cluster of papers focuses on the diagnosis and management of adrenal insufficiency, particularly in the context of septic shock and autoimmune polyendocrine syndrome. It covers topics such as corticosteroid therapy, hydrocortisone treatment, AIRE gene mutations, cortisol response, and the impact on the hypothalamic-pituitary-adrenal axis. The research also delves into glucocorticoid replacement, autoimmune disorders, and endocrine dysfunction.