Prehistoric people were Nomadic. They hunted for food - Hunter-Gatherers.
THEY DID NOT WRITE - No knowledge could be passed on except verbally.
Trephinning was to release evil spirits. Many cures were spiritual:
- Dancing and ceromonies
MEDICINE MAN dealt with 'supernatural' problems, he:
- Sang and chanted.
- Put patients into a trance.
- Used a quartz.
WHEN SPIRITS ENTERED THE BODY YOU BECAME ILL