Graves' disease is characterized by increased production of which type of hormones?

Graves' disease is an autoimmune disorder that leads to hyperthyroidism, characterized by the overproduction of thyroid hormones, primarily thyroxine (T4) and triiodothyronine (T3). In this condition, antibodies are produced that stimulate the thyroid gland, causing it to produce excessive amounts of hormones. This increased production results in symptoms such as weight loss, heat intolerance, increased heart rate, and anxiety.

The other hormone types listed in the options pertain to different functions and glands in the body. Insulin is produced by the pancreas and regulates blood sugar levels, adrenaline is a hormone produced by the adrenal glands in response to stress, and corticosteroids, also produced by the adrenal glands, are involved in the stress response and metabolism regulation. However, none of these hormones are directly involved in the pathology of Graves' disease, making the option of thyroid hormones the only correct answer in this context.