How Your Gut Is Quietly Running Your Mood

Roughly 90% of your serotonin is made in your gut. Your gut has 500 million neurons. Your gut sends 10x more signals to your brain than your brain sends back. And most of the conversation about mental health acts like none of this exists. This video draws the actual biology: the enteric nervous system (your gut's independent nervous system), the vagus nerve (which mostly runs upward, from gut to brain), gut-produced serotonin, the gut immune system and cytokine signalling, the microbiome's role in producing neurotransmitters, the bidirectional stress-gut relationship, the gut-brain axis's role in early development and stress calibration, the connection to sleep, and the intersection with chronic pain research. No supplements. No diet advice. No wellness product pitch. Just the actual wiring. No cap. #NoCapBro #GutBrainAxis #GutHealth #Serotonin #VagusNerve #EntericNervousSystem #Microbiome #MentalHealth #NoCap