Scientists are tuning in to a surprising conversation happening inside us—between our gut and our brain. Host Rachel Feltman chats with Maya Kaelberer, an assistant professor at the University of Arizona’s department of physiology, to explore how intestinal cells and microbiomes might be shaping our moods, cravings and mental health in ways we’re only beginning to understand. Recommended Reading “A Gut Sense for a Microbial Pattern Regulates Feeding,” by Winston W. Liu et al., in Nature. Published online July 23, 2025 Website for the Gut Brain Laboratory at the University of Arizona The gut-brain community website Gastronauts E-mail us at
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