The Three Fundamental Needs of the Brain

The brain evolved in three stages to simplify a bit, kind of like building a house from the bottom up. It's a little bit as if inside each one of us is a little lizard, a little mouse, and a little monkey. The brain has two settings, two ways of going about meeting these needs. We have both capacities as human animals to go about meeting them. Mother Nature's plan for us to spend as little time with our emotions as possible so that we are not upset or stressed or fearful or frustrated or abandoned by others. That's good news. I'm addressing the fundamental question of what is human nature.