Old Chinese doctor. The old doctor of traditional Chinese medicine taught Song Meiling ways of keeping in good health, such as how to eliminate anxiety by chatting and how to pay attention to the maintenance of intestines when angry. The old doctor of traditional Chinese medicine also recommended Huangdi Neijing, and Song Meiling's mentality began to change under the guidance of the old doctor of traditional Chinese medicine. This change is closely related to Song Meiling's longevity.