The Gut as the Second Brain

The gut is revealed to have a remarkable relationship with the mind, illustrated by the communication pathways established between the two systems. Research highlights that the gut contains around 100 million neurons, enabling it to operate with a degree of independence from the central nervous system. This has led to a perception of the gut as a 'second brain,' capable of influencing not just digestion, but also emotions and instincts. Historical views, dating back to ancient physicians like Galen, supported the idea that the gut's functions extended beyond mere physical processes, intertwining with our mental and emotional states.