Hormones

Hormones are chemical messengers produced by specialized glands and organs in the body. They travel through the blood to reach target cells, where they help regulate many important functions. Hormones influence processes such as growth, metabolism, reproduction, sleep, stress responses, and mood.

For example, growth hormone contributes to physical development, insulin helps control blood sugar levels, and thyroid hormones help regulate how the body uses energy. Even though hormones are present in very small amounts, they can have significant effects on the body when they interact with the right cells.

The production and release of hormones are carefully controlled by the body through complex communication systems, especially involving the brain and the endocrine glands. During periods such as childhood, puberty, pregnancy, and aging, hormone levels naturally change to support different stages of life.

Sometimes, an imbalance in hormone production can affect health and lead to various disorders. Scientists study hormones and the endocrine system to better understand how the body maintains balance and how certain treatments can help when these systems do not function properly.