What Is Graves’ Disease?

The thyroid is a gland in the front of your neck. It makes hormones to help control your metabolism, which is how your body turns food into energy. Some people have a condition where their body’s immune system attacks the thyroid gland. When this happens, their thyroid gland produces too much hormone. This is called hyperthyroidism, or Graves’ disease. Graves’ disease affects muscles and tissue surrounding the eyes.