Thyroid health and psychological health are often linked in ways of which many people are not aware. As a person develops a thyroid condition, he or she often becomes depressed. This depression can lead to more problems with the thyroid which, in turn, lead to further depression - a vicious cycle that is difficult to treat unless the problem is addressed on several levels. This book offers an overview of what the medical community knows about dysfunctional thyroid. You'll receive an introduction to thyroid disorders, what the thyroid hormone does, and how it functions in relation to their psychological well-being. Of particular concern, they learn, is hypothyroidism, the name for a lower-than-normal production of thyroid hormone that most often leads to depression. The book proposes a number of diet and lifestyle changes you can experiment with in addition to conventional medical treatment to try to correct a thyroid condition, as well as cognitive techniques for overcoming depression.