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.
The thyroid combines the iodine with tyrosine (an essential amino acid) to make important hormones. Thyroid hormones are released from the gland and travel through the bloodstream to your body's cells. They help control the growth and the structure of bones, sexual development (puberty), and many other body functions.nce the diagnosis is made, a teen with Graves disease will usually start taking an anti-thyroid medication, which blocks the thyroid's production of thyroid hormones. Medication usually brings the hormone levels down to the normal range in 1 to 2 months.