During the Middle Ages, the difference between what was real and what was paranormal was not always unambiguous. This is especially seen in the perception of the cause of sickness as well as the unintelligible remedies believed to restore the health of suffering patients. The underlying principles of medieval medicine were the four humors: black bile, yellow bile, phlegm, and blood. The balance of these four allowed for a human's overall well-being. The Humors "The …showed first 75 words of 1093 total…

…showed last 75 words of 1093 total…sins for the health deficiencies. <Tab/>In summary, the medieval era was a time of uncertainty, plague, and learning. While the Greek and Roman texts were referenced, new knowledge was also acquired about the human body as well as the difference between reality and folklore. Medieval medicine has also served as a vital foundation for modern medicine. Without this essential underpinning, medicine might still be left hanging in the Dark Ages.