The Endocrine System

The endocrine system is a system of glands that produce hormones. These hormones act as chemical messengers that travel to the blood to act on target tissues. These tissues are able to perform a function that the hormone determines.

A negative feedback loop is a mechanism that keeps your body in homeostasis. When hormones are too high, the production shuts down. As hormone levels drop, the production resumes until the hormone is too high again.