What happens when the nervous system detects a threat?
Despite thinking of ourselves as civilized and evolved, humans are at our core still animals. We have evolved over millions of years to avert danger, conserve energy, and reproduce. It’s how our species survived. Every involuntary thing that our autonomic nervous system does is with the goal of keeping us safe and secure.
What is the nervous system?
Think of the nervous system as a whole tree that includes the tips of the leaves (in your brain) all the way down to the tiny roots (your fingers and toes).