Your gut has 500 million neurons — more than your spinal cord — so when it 'speaks', your brain listens.
More than a gut feeling
The human gut contains a complex nervous system with over 500 million neurons, known as the enteric nervous system. This 'second brain' communicates directly with the brain via the vagus nerve and produces 90% of the body's serotonin. New research reveals this gut-brain axis plays a crucial role in mood, anxiety, and mental health.
Source: More than a gut feeling — New Scientist
A daily AI-made news meme from Jester · Jul 23, 2026.
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