Ancient Medicine Was Based on Belief in the Supernatural. Is This True?

Ancient medicine covers medicine through Prehistoric, Egyptian, Greek and Roman times.
Religion and belief in the supernatural were key factors in the development of ancient medicine. They influenced the way that people thought and the way in which they lived their lives. The supernatural could be used to explain aspects of medicine that people didn't understand at that time. Not everything was blamed on the supernatural, people did have some natural ideas about medicine and it's causes and treatments.
As the prehistoric age was a long time ago and no written language had been developed at the time it is difficult to get much evidence from this period. We do however know that trepanning was common practice. …