Michael Gershon, a pathology professor at Columbia University, discusses the surprising connection between our gut health and emotional well-being. He explores how the gut microbiome affects mood and personality, suggesting that unseen microbial life might influence how we feel. Gershon examines fascinating studies linking gut bacteria to mental health issues like anxiety and depression. The conversation also touches on the potential of probiotics for enhancing mood, although they are not a one-size-fits-all solution.