The chemical nature of hormones is steroids, peptide and protein hormones and amino acid derivatives. Hormones travel throughout the body controlling important processes, such as fertility, metabolism and growth.
Hormones are chemicals that are secreted by different glands throughout the body, which are controlled by the brain. Hormones don't affect every cell in the body when they are released, even though they come in contact with all cells. Once released, the chemicals in the hormones bind to a receptor, triggering different chemical reactions in the cells.
The chemicals in hormones often come in contact with hormone disrupting chemicals. When this occurs, it alters the response of the cells to the hormones, which can lead to problems in the body.