The Gut–Brain Connection Is Real

Añadido: 2026-05-25

The gut and brain communicate bidirectionally through the vagus nerve, immune signaling, and microbial metabolites, meaning gut bacteria can influence neurotransmitter production while the brain affects gut motility and immune activity; stress can alter gut permeability and microbiome composition, and poor gut health may contribute to mood and anxiety, though it is only one factor alongside genetics, hormones, and environment.