The thyroid gland is one of the most important organs of our body. The functioning of the brain, cardiovascular system, and even mood and our weight depend on its functional state. Therefore, the health of the thyroid gland needs to be monitored and treated correctly if you do get sick. In this book, experienced doctor Yulia Popova will tell you all the most important things about the most common diseases of the thyroid gland, such as hypo- and hyperthyroidism, Graves' disease. Methods of diagnosis and prevention , symptoms and course of the disease, and most importantly, all treatment methods are in the book of an endocrinologist with extensive experience. Let's be treated correctly!