Endocrinology is the branch of medicine that focuses on the endocrine system, which comprises glands that secrete hormones into the bloodstream. These hormones regulate various bodily functions, including metabolism, growth, reproduction, and mood. Endocrinologists diagnose and treat disorders related to hormone imbalances, such as Diabetes, thyroid diseases, and adrenal disorders. Their work often involves both clinical practice and research to understand hormonal functions and develop new treatments.