The thyroid gland is a very important endocrine gland, whose hormones affect both the development of the nervous system and regulate body metabolism or bone growth. Thyroid dysfunction leads to a variety of symptoms - these can range from gastrointestinal peristalsis to menstrual disorders or weight fluctuations. However, it turns out that among the various abnormalities that are associated with a malfunctioning thyroid gland, there are also disturbances in the amount of cholesterol in the body.