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The Vagus Nerve: Why Your Gut Controls Your Stress and Mood 

At a glance

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18 min. read

At a glance

You don't sleep well. Your digestion is off. You feel anxious. Three symptoms, one common origin: the invisible dialogue between your gut and your brain. The vagus nerve, your gut microbiota, and your neurotransmitters form an axis that modern stress silently disrupts. Here's how to restore it.
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You have poor digestion, you sleep poorly, you are anxious. What if the problem wasn't in your stomach or your head, but in your vague nerf ? The vague nerf, this biological highway that connects your gut to your brain, could be the key.

For a long time, it was believed that the brain controlled everything. That it sent orders, that the rest of the body obeyed, and that emotions were exclusively a mental affair. If you are anxious, it's in your head. If you are depressed, it's chemical, in your brain. If you sleep poorly, it's stress.

But the science of the last twenty years has overturned this view. Your gut has its own nervous system, produces the majority of your neurotransmitters, and constantly communicates with your brain via a biological highway called the vagus nerve.

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