The level of basal metabolism is usually determined by a combination of symptoms and clinical findings. Basal metabolism refers to the amount of energy required to maintain basic physical activity when the body is in a conscious and calm state, and is not affected by factors such as muscle activity, ambient temperature, diet, or mental state. Individual differences in basal metabolic rate are large, and may vary among people of different ages, genders and races. 1. Rough judgment through symptoms: for people with fast metabolism, they will be hungry faster and eat relatively more, but their weight does not increase too much; for people with slow metabolism, they will be afraid of being cold, have poor appetite, and become obese. 2. Judgement through clinical examination results: You should go to a regular hospital and have a doctor combine the results of age, blood pressure, gender, blood routine, blood glucose, thyroid function, trace elements and other examinations to make a comprehensive judgment. Basal metabolic rate is recommended to be systematically examined and evaluated under the guidance of a doctor.