And not for any lack of effort on their part, but for the lack of tools.

How could ancient healers have studied the brain, really STUDIED it, without knowing anything about cells, neuroarchitecture, or electricity?

The brain isnt even listed as one of TCM's 11 essential organs. Even the organs that are listed, arent necessarily referring to the actual organs.

The idea that ancient medicine was onto ideas thay wouldnt be elucidated until much later is perfectly acceptible to me. Their attributions of phenomena in the absence of the ability to test them, is not.