The thyroid is part of the endocrine system and regulates your body's metabolic rate. It is a small gland with a complex job. When the thyroid is not working properly, it can affect many functions of your health including your heart, explains Dr. Robert Smallridge, a Mayo Clinic endocrinologist. Watch: The Mayo Clinic Minute Journalists: […] More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.