There Are 500 Milion Neurons in Your Gut Wall Running Your Entire Digestive System Without the Brain

追加: 2026-06-05

[00:00:00]Let's talk about the enteric nervous system. 500 million neurons live in your gut, more than your entire spinal cord.

[00:00:08]No brain required.

[00:00:10]This is the enteric nervous system. Two complete neural plexuses running digestion autonomously.

[00:00:18]The myenteric plexus coordinates peristalsis, sensing the bolus, contracting above, relaxing below. No signal leaves the gut.

[00:00:28]The submucosal plexus controls secretion and blood flow, matching resources to digestive demand in real time.

[00:00:37]Enterochromaffin cells hold 95% of your body's serotonin, coordinating movement and sending signals to the brain.

[00:00:45]80% of the vagus nerve is afferent. The gut sends four times more information to the brain than it receives.

[00:00:53]ENS neurons also talk to immune cells, integrating neural and immune activity locally.

[00:00:59]500 million neurons, two plexuses, digestive control, immune coordination, serotonin production, all autonomous.

[00:01:09]The nervous system most people never think about. Follow for the next organ.

[00:01:13]Educational only, not medical advice.