"Yang in spring and summer, Yin in autumn and winter", from the perspective of health, autumn is very important. Autumn is a transitional process from summer to winter. Tonifying at this time is not only of great significance for human body to adapt to autumn climate change and ensure autumn health, but also to prepare for "winter storage".

Although autumn is the golden season for tonic, improper tonic methods not only fail to achieve the expected results, but sometimes do harm to the body. A large number of clinical examples warn people that if we don't pay attention to the principles, methods and choices of tonic in autumn, it is not only unhealthy, but also likely to cause diseases.