The primary function of hormones is to act as chemical messengers in the body. Hormones are produced by various glands and secreted into the bloodstream to regulate numerous physiological processes, including growth, metabolism, reproduction, mood, and stress responses. They work by binding to specific receptors on target cells, triggering appropriate responses to maintain homeostasis. Hormonal balance is crucial for health; imbalances can lead to various health issues such as diabetes, thyroid disorders, and reproductive problems. Understanding hormone functions is vital for various medical fields and for maintaining overall health.