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The enteric nervous system (ENS) is a complex network of 100-200 million neurons that extends from the esophagus to the anus and plays a crucial role in regulating gut motor function, blood flow, food analysis, and waste elimination. The ENS communicates with the immune system and gut flora, enabling a bidirectional exchange between the gut and brain via neural pathways, neurotransmitters, and metabolites. Research suggests that the connection between the gut and brain influences our emotions, thoughts, and decisions more than previously thought. Stress can directly affect the gut and vice versa, with chronic stress leading to digestive issues. Maintaining a healthy gut flora is important for individual stress management and overall well-being.