The thyroid gland is in your neck, below your Adam's apple. Thyroid glands produce hormones that go to cells in your body and control your metabolism^* level.

Metabolism is the speed at which your body produces energy^* from foods.

Your thyroid gland is important because when it produces the correct amount of thyroid hormone then all of your major organs, like the heart, liver, brain and kidneys work correctly.

If the thyroid gland does not work correctly, it can effect your growth.