In addition, methods such as not eating at night, eating less and eating early are not suitable for people with poor exercise ability and no exercise habits. Basal metabolism is a big head. Basal metabolism refers to the minimum energy consumption needed to maintain life. Think of it as the consumption when you are about to fall asleep. Suppose a 30-year-old 50kg woman walks for an hour and consumes 224 calories. What is her basal metabolism? About 1 100 calories. In other words, she can consume more than 360 calories by sleeping for 8 hours at night.