Basal metabolic rate (BMR) is the value of the body’s metabolism in the quiet state in the early morning. A high BMR is often a sign of good health. However, if it is much higher than the basal metabolic rate, it is necessary to consider the endocrine system diseases, such as hyperthyroidism, we need to observe whether the patient has the symptoms of fear of heat and excessive sweating, rapid heart rate, fatigue, overeating, and diarrhea, etc. Hyperthyroidism patients will also have emaciation, protruding eyes, and enlarged thyroid gland, and other manifestations. Therefore, if the basal metabolic rate is much higher, it is recommended to observe the above symptoms, and if the above symptoms are present, it is recommended to go to the endocrine clinic for thyroid ultrasound and 5T examination.