What are hormones?
Hormones are chemicals in the blood which serve as messengers to coordinate body functions. For example, thyroid hormone regulates the overall rate of metabolism throughout the body. Cortisol (often referred as cortisone which is a related hormone) orchestrates the bodys response to stress and has other functions as well. Many hormones do their work unobtrusively so you never even notice them. Usually hormones attract notice only when they are acting up.
