Here is the translated text: **Symptoms** The thyroid gland produces too much thyroid hormone, causing a range of symptoms including: * rapid heartbeat * nervousness * trembling * feeling short of breath * getting tired easily * experiencing muscle weakness **Risk factors** Being a biological female and being over 60 years old increase the risk of hyperthyroidism. Other risk factors include: * having a family history of thyroid disease * eating a diet rich in iodine, such as kelp * taking medication that contain iodine * using nicotine, such as smoking or vaping * being pregnant within the previous 6 months **Treatment options** Doctors treat hyperthyroidism according to the underlying cause and severity of the condition. The aim is to bring thyroid hormones back down to typical levels. The three main treatment types for hyperthyroidism include: * Medication, such as beta-blockers * Radioiodine therapy * Thyroid surgery **Thyroid medications** Beta-blockers work mainly in the heart to prevent substances, such as adrenaline, from affecting nerve cells. This treatment reduces blood pressure and heart rate. Antithyroid medication reduces thyroid hormone production and may temporarily reduce Graves' disease symptoms. However, some people experience side effects, including: * an adverse reaction, such as a rash and itching * a reduction in white blood cells * liver failure **Radioiodine therapy** Radioiodine therapy slowly kills off the cells that produce thyroid hormone. It does not affect other tissues in the body. Doctors do not prescribe radioiodine therapy during pregnancy as it can harm the fetus. A person is extremely likely to develop hypothyroidism following radioiodine therapy. **Thyroid surgery** If a person has a goiter, a swollen neck due to enlargement of the thyroid gland, doctors may recommend surgery. They may also suggest it for a person with hyperthyroidism during pregnancy when other treatments are potentially harmful or inadequate. **When to contact a doctor** It is essential to check thyroid function if experiencing any symptoms, including palpitations, diarrhea, and excessive sweating. If experiencing any of the following symptoms after taking thyroid medication, contact a doctor immediately: * tiredness or weakness * dull pain in the abdomen * loss of appetite * skin rash, itching, or easy bruising * yellowing of the skin or whites of the eyes * constant sore throat * fever or chills **Summary** Hyperthyroidism causes the thyroid gland to produce too much thyroid hormone, speeding up essential body functions, including heart rate. This may increase the risk for cardiovascular issues, such as raised blood pressure, irregular heart rhythm, or stroke. Treatments include medications, radioiodine therapy, or surgery.