Hyperthyroidism can cause mental abnormalities. Hyperthyroidism refers to a series of symptoms of high metabolism caused by excessive secretion of thyroid hormones by the thyroid gland in the body. Excessive secretion of thyroid hormones into the bloodstream acts on the nervous system and causes increased sympathetic excitability, resulting in irritability, anxiety, irritability, insomnia, dreaminess, and other uncomfortable symptoms that may be confused with related psychiatric disorders. Many elderly patients may develop apathetic hyperthyroidism, while many children may have it affect their attention span, making them suffer from chronic inattention and affecting their learning status. Therefore, if hyperthyroidism affects mental symptoms, it is important to visit the relevant endocrinology department to bring the thyroid function under normal control.