The basal metabolic rate is generally 1,200 to 1,400 calories for Japanese adults and 1,500 to 2,000 calories for European and American adults. It can also be calculated based on the basal metabolic rate formula, but it is not absolute due to daily lifestyle and other influences. Basal metabolism is measured as the rate of energy metabolism when the body needs to be kept in a state of extreme quiet and wakefulness and is not affected by factors such as muscular activity, diet, mental stress, and ambient temperature. Typically, the basal metabolism of Japanese adults is generally 1,200 to 1,400 calories, while that of European and American adults is 1,500 to 2,000 calories. The common formula for calculating basal metabolic rate (%) = (pulse rate + pulse pressure) – 111, which is roughly able to calculate a person’s basal metabolic level. According to research data, the average value of basal metabolic rate in China is 159.20 kJ/(m²-h) for men aged 20~29 years old, and the average value of BMR for women is 147.49 kJ/(m²-h). Meanwhile, basal metabolic rate can be affected by age, gender and other factors, and is also used clinically to diagnose thyroid-related diseases. People with abnormalities in basal metabolism need to seek medical attention to identify the cause.