- By Joel Streed
How the thyroid affects the heart: Mayo Clinic Radio Health Minute
The thyroid is part of the endocrine system and regulates your body's metabolic rate. It is a small gland with a complex job. In this Mayo Clinic Radio Health Minute, Dr. Robert Smallridge explains that when the thyroid is not working properly, it can affect many functions of your health, including your heart. To listen, click the link below.