The gut-brain axis affects overall well-being by connecting the gut microbiome with the brain through biochemical signaling. This relationship influences mood, cognition, and stress levels, demonstrating how gut health can impact mental health. A healthy microbiome can produce neurotransmitters like serotonin, which aids in regulating emotions. Disruptions to gut health, often caused by poor diet or stress, can lead to issues such as anxiety and depression, emphasizing the importance of maintaining a balanced diet for both gut and mental health.