## [Behave: The Biology of Humans at Our Best and Worst](https://www.amazon.co.uk/Behave-Biology-Humans-Best-Worst/dp/1594205078)
## [Robert Sapolsky on "us" vs "them" in military conflicts](https://www.youtube.com/watch?v=yk5RDy6xFJQ)
- [Dr. Robert Sapolsky: Science of Stress, Testosterone & Free Will | Huberman Lab Podcast 35](https://www.youtube.com/watch?v=DtmwtjOoSYU)
## Determine - free will
## [1. Introduction to Human Behavioral Biology](https://www.youtube.com/watch?v=NNnIGh9g6fA)