From Galens De Sanitate Tuenda to Holistic Health: A Historical Study of the Six Non-Natural Factors

1. Introduction By the second century CE, the Roman Empire had become a vast arena of cultural exchange and intellectual synthesis. Greek philosophical medicine—rooted in classical medical corpus—had merged with Roman empiricism and Stoic ethics to produce a new medical humanism. Within this context, a prominent physician-philosopher of antiquity emerged as the most influential figure of the era, shaping medical…