Endocrinology is the study of hormones and their effects on the body. It focuses on the endocrine system, which includes glands that produce and release hormones to regulate various bodily functions such as metabolism, growth, development, reproduction, and mood. Endocrinologists are medical professionals who specialize in the diagnosis and treatment of hormone-related disorders, such as diabetes, thyroid disorders, and hormonal imbalances. Research in endocrinology aims to better understand the complex mechanisms of hormone regulation and develop new treatments for endocrine diseases.