Factopus

7 of 9

LESSON 2 · The Microbe Within

PAUSE TO THINK

Why is the gut sometimes called your 'second brain'?

It has its own dense network of neurons

The gut wall holds a vast web of nerve cells — the **enteric nervous system** — that can run digestion on its own, without orders from the brain. This is the wiring gut bacteria tap into to shape how you feel.

←Back Next Page →