I studied Medicine for two years, and was surprised by how much advanced and knowledgeable our ancestors were.
Pharaons did brain surgery to remove cancer tumors a thousands years back successfully. This alone, shows the degree of sophistication and technology they had.
Now I'm not saying before is better, but today we rely a lot on technology (IRM, Radiology, Echography...) that we don't keep much of the details and don't even need to learn them.