Hormones are chemicals that coordinate different functions in your body by carrying messages through your blood to your organs, skin, muscles and other tissues. These signals tell your body what to do and when to do it. Hormones are essential for life and your health.
Hormones and most of the tissues (mainly glands) that create and release them make up your endocrine system. Hormones control many different bodily processes, including:
Metabolism.
Homeostasis (constant internal balance).
Growth and development.
Sexual function.
Reproduction.
Sleep-wake cycle.
Mood.
