Don't be too full before going to bed, but don't think too much. Chinese medicine says that "the stomach is not harmonious and you can't sleep well", because people need to rest at night, and so does the spleen and stomach. Eating too much at dinner will increase the burden on the spleen and stomach, disturb the yang of the spleen and stomach, and thus affect sleep. Therefore, dinner should be seven or eight minutes full, as light as possible, protect the spleen and stomach, and clear the yang. It is not advisable to exercise vigorously before going to bed and disturb the yang, including watching TV, talking and chatting before going to bed and other activities that disturb the yang. Moreover, the radiation of TV, audio and other electrical appliances will interfere with the autonomic nerves of the human body. Therefore, it is not advisable to do strenuous exercise, watch TV or chat half an hour before going to bed. The spleen governs thinking, thinking too much hurts the spleen, and thinking too much easily disturbs the mind.