Graves' disease. Graves' disease is the most common cause of overactive thyroid. It can run in families and can occur at any age, although it is most common in women aged 20-40 years old. You are more likely to develop Graves' disease if you smoke. Graves' disease is an autoimmune condition.
Full Removal. If your doctor removes your entire thyroid, your body will begin to exhibit symptoms similar to hypothyroidism, due to the lack of thyroid hormones in your body. These symptoms may include fatigue, elevated cholesterol levels, uncontrollable weight gain, muscle weakness and depression.
More than 100 years ago, iodine was shown to reverse and prevent goiter (swelling of your thyroid gland) and to correct hypothyroidism. But we now understand that iodine's effects are much farther reaching. Iodine has four important functions in your body: Stabilization of metabolism and body weight.