Generates the hormones regulate the body's metabolism, thyroxine and thyroid. Two main types of thyroid hormones: hypothyroidism, hyperthyroidism. If hypothyroidism is there are people that her thyroid problem can lead to obesity are lack of energy mind enough hormones do not. Hyperthyroidism, too human thyroid thyroid hormones that leads to weight loss, irregular heartbeat, excessive sweating occurs when. Several other conditions that can lead to disorders of thyroid hormone. In some cases, treatment of one type of thyroid hormone, other actually might be. Drugs such as lithium may in the thyroid hormone. For many autoimmune diseases has thyroid hormonal disturbance, body responsible. For example, grave's disease is hyperthyroidism occurs. If someone has Graves disease, her immune system will promote glands to produce extra thyroxine, thyroid, attack. You can handle the anti-thyroid drugs to reduce the amount of the glands to produce hormones and grave illness.