In this episode, Matt and Kevin stick with the brain,
this time looking at the immunological implications of
a variant of a gene called Apolipoprotein E
that has been linked to Alzheimer's and other neurodegenerative diseases.
It's a long one, and we get snarky in this one folks!
Buckle up!
In this episode, Matt and Kevin are joined by [Nicole Ackermans](https://nicoleackermans.com)
to discuss her recent review paper tracing human thoughts about headbutting
from 10,000 BCE to the present day.
How are animals like bighorn sheep and woodpeckers protected
from brain injury?
Actually, wait... **are** they protected from brain injury?
