In the family chain of traditional Chinese medicine, today's Yangzhengtang in Hong Kong and He Yi is the oldest and most influential family in the contemporary era. From the Song Dynasty to the present, it has been rolling from Nanjing to Hong Kong, which has been passed down to this day and has become a story of Xinglin for a long time. At present, the great-grandfather of the owner of Heyitang is good at treating gynecological diseases; His grandfather is not only proficient in gynecology, internal medicine and pediatrics, but also very good at trauma reduction. His father inherited the ancestral training and integrated family heirloom, gynecology and pediatrics. They are Chinese medicine practitioners of many celebrities in Hong Kong.

Harmonious health preservation is a skill created by inheriting the cultural concept of health preservation in Huangdi Neijing. Based on the requirements of health preservation in Huangdi Neijing, that is, "the law is in yin and yang, and the number of skills is in harmony". The boss of Heyitang began to test this ancient health culture as a new vocational skill in the market in the 1990s. Practice is the criterion for testing truth. Nearly twenty years' market inspection and consumers' word of mouth have proved that the health-keeping culture with harmony as the core in Huangdi Neijing is a skill and service project that the masses love and the market needs.