Glossary -   Hormone

 

 

Hormones include many different types of chemicals that act as messengers around the body. Hormones are made by specific endocrine glands and are secreted into the blood when needed by other parts of the body. Hormones travel to other organs and tissues in the body to signal them to do something. For example, insulin is a hormone that signals muscle and fat cells to remove glucose from the blood and enter the cells.