What Role Does the Thyroid Gland Play in the Human Body?

By Staff WriterLast Updated Apr 5, 2020 6:34:40 AM ET
Universal Images Group Editorial/Universal Images Group/Getty Images

The thyroid gland plays a major role in the human body's everyday functions by secreting hormones that control metabolism, according to Harvard Medical School. Because the thyroid gland produces the substances that influence and regulate the body's metabolism, it functions in a manner similar to the conductor of an orchestra. Metabolism determines the rate at which cells are produced, nutrients are absorbed and energy is used, which affects every organ and system in the body.