he is a few thousand years removed from a cave man, the trouble is however, those noble savages didn't leave a written record for us to enjoy. :-\I consider Hippocrates and the other sources I've mentioned as perhaps come of the closest links we have to this ancient, almost instinctive knowledge, if nothing else it may provide a good source of reference and as we consider both our discoveries of ancient medicinal practices and learn of more modern practices, something of a bridge across the ages.
That is an excellent point.