Panic and palpitations are related to hypothyroidism, and for hypothyroid patients, heart disease will occur secondary to hypothyroidism. For example, if the thyroid gland has prolonged insufficiency, the patient’s heart function will be impaired due to the decreased secretion of thyroid hormones, and chronic cardiac insufficiency will occur. In chronic cardiac insufficiency, the patient will experience ischemia and lack of oxygen in cardiac muscle cells. As a result, clinical symptoms will appear, and patients will manifest chest tightness, shortness of breath, panic, palpitations, precordial discomfort, etc., and in severe cases, they will also have dyspnea and wheezing after exercise, and a series of symptoms. Therefore, for the above patients, it is necessary to actively treat the primary disease, such as treating hypothyroidism with eugenol, etc., so as to improve the clinical symptoms such as panic and palpitation.