Hyperthyroidism is a group of common endocrine disorders caused by excessive secretion of thyroid hormones. Due to the hyper-metabolism of the body, patients often suffer from excessive eating, weight loss and palpitations. However, hunger caused by hyperthyroidism is somewhat different from ordinary hunger. In general, because hyperthyroidism patients have a faster metabolism than ordinary people, resulting in faster gastrointestinal motility, if they have the same amount of meals as ordinary people, they get hungry earlier than ordinary people. Thus, hyperthyroidism patients may eat more than normal people at each meal, but they are also particularly hungry, which is known as good hunger. Even though hyperthyroidism patients eat a lot of food, they usually do not become obese because of this, but gradually lose weight because their bodies cannot absorb nutrients. In addition, hyperthyroidism is often associated with heartburn, which is not the case in normal people. If a patient has these symptoms, he or she may be considered to have hyperthyroidism and may go to the hospital for a formal thyroid function test to determine if the disease is present. If diagnosed, treatment with appropriate medication is usually required.