In the old days, diseases were considered as god’s punishment. But this kind of thought had changed until Hippocrates of Cos showed that diseases were just the natural process of our bodies. He stated that the symptoms were formed by the reactions in the body. Hippocrates was a Greek physician, who was the father of Western medicine. One of his most famous contributions is Hippocrate Oath which for making sure that doctors reach their standard when doing their works. It’s using popularly today. The study of diseases by Greece had lead to the growth of pharmacies today. We have to appreciate them; because of Greece, we can find many vaccinations and medicines to treat illness.