Luzzatto, Aaron. Sama de-Chayei [“Spice of Life”: Anti-medical invective]

The Author adjures his son to avoid medical doctors, buttressing his argument with quotations from throughout rabbinic literature. He tells of having met an elderly man whose father had only just passed away. The old man related that his father lived to be well over one hundred years old as he had the good fortune no doctor was accessible in his locale. He advises his son to follow the path outlined by Maimonides - eat well, sleep well and not overindulge