Unfortunately the long term propaganda has convinced most people that medical personnel have to be intelligent to complete their education in the medical sciences. The simple truth is that we credit doctors, nurses and other highly "educated" personnel with a false assumption of intellect. Many are ignorant, lack common sense, uninterested in continuing to pursue knowledge, over worked/burned out, or just plain dumb. There are some highly intelligent people in the medical community, but the strata is spread across different types of intelligence and at different levels. There are dumb people that worked very hard or came from wealthy families that become doctors. The most important asset for a doctor is to speak very confidently about their opinion and people take that as assurance that they know what they are talking about. The training process for doctors is a time tested brain washing technique that instills a false sense of superiority and undeserved confidence in a field of extremely variable sciences. For a doctor to come out and tell you that your blood chemistry is wrong, or your heart rate is abnormal without any previous information about your particular biology is simply guessing based on normal ranges. It takes multiple sets of data to come to any definite conclusions, especially with human beings being so varied in their biology. What is normal for most is not necessarily the same for all. Hell, there are people with all their organs reversed. Heart on the right side, etc. You have to collect data in order to make a hypothesis with any level of accuracy.