Chemical substances produced by the thyroid gland that regulate metabolism and energy levels in the body.
Hypothyroidism: A condition characterized by an underactive thyroid gland, resulting in low levels of thyroid hormones and a slowed metabolism.
The chemical processes that occur within a living organism to maintain life, including converting food into energy.
Hyperthyroidism: A condition characterized by an overactive thyroid gland, resulting in high levels of thyroid hormones and an accelerated metabolism.