Your These thyroid hormones is a small, butterfly-shaped gland in your neck.
Your These thyroid hormones is a small, butterfly-shaped gland in your neck. It produces 2 hormones: tri-iodothyronine (T3) and thyroxine (T4). These thyroid hormones help your body use energy, stay warm and keep your brain, heart, muscles and other organs working as they should. Many of