Greeks Four humours Greeks believed that in human body there are four humours: earth, fire, water, air. They believed if these four were unbalanced person would become ill.
Diet and Exercising Greeks had developed an understanding about healthy diets and physical exercising to keep your body healthy and feet. And that would help control Four humours as well.
Hippocrates Importance of observation They started to do diagnosis and prognosis and kept a record of patients disease. Hippocratic oath Every doctor had to respect and treat their patients with care. Rejection of supernatural ideas Greeks understood that cause for disease was no Gods job it was persons reason like unhealthy diet.