What is the role of hormones in the life of organisms?

Hormones are highly active substances in the body that regulate the course of vital processes and maintain the body’s homeostasis. Everything from the very first days in the womb is regulated by hormones in the human body. They affect the level of glucose in the blood, the processes of growth, development, excretion, respiration, and digestion. Hormones are involved in the regulation of puberty, the formation of secondary sexual characteristics, and the course of pregnancy. In addition, hormones are the reason for the appearance of emotions in a person: joy, love, fear, affection, all of which are regulated by hormones.