What are endocrine glands?

Endocrine glands are like tiny messengers inside your body that send messages to help you grow, feel happy, and stay healthy.

Imagine your body is a big city, and each part of it has jobs to do. Endocrine glands are like the postal service, they write notes (called hormones) and deliver them through the blood to other parts of the body. These notes tell cells what to do, just like how a teacher tells students when to start working.

Endocrine glands don’t have tubes or pipes, they send their messages straight into the bloodstream, kind of like dropping a letter in a mailbox. The blood carries these hormones all around your body until they reach the right place, where they help control things like how tall you grow, when you feel sleepy, or even if you get a little grumpy before bedtime.

Some endocrine glands are easy to find, like the thyroid in your neck or the pancreas behind your stomach. Others are hidden, but they're just as important, working quietly all day long.