This was possibly the oldest surgical procedure to have ever existed, but we can only guess by way of archaeological evidence. Ancient cave paintings have also illustrated this particular medical practice, and it is believed that they performed these procedures for the humanoids that had mental problems, migraines, and other brain-related problems or whatever. Good grief, can you imagine somebody that is about 3 hairs away from being a monkey, jabbing holes into your head while telling you that you're going to be okay??? Wow! Anyway, I thought I'd share these tidbits with the community today; cheers!
If for some reason you are interested in reading more about this crazy subject, go here: en.wikipedia.org/wiki/Trepanation
Image Credit: It is in the Public Domain because its copyright has expired.
---End of Post "Neolithic Trepanation"