What field does health belong to?

Nanjing. Jiankang, also known as Jiankang, is called Jianye in Nanjing today. Sun Wuding was the capital of Jiankang in the Jin and Southern and Northern Dynasties, and the capitals of Eastern Jin, Southern Song, Qi, Liang and Chen Ding. Qin hometown county was originally named Jinling and named Moling. Nanjing, referred to as Ning for short, was called Jinling and Jiankang in ancient times. Jiangsu Province is a prefecture-level city, provincial capital, sub-provincial city and megacity, and it is the core city of Nanjing metropolitan area. It is an important central city, an important scientific research and education base and a comprehensive transportation hub in eastern China approved by the State Council.