The English language provides many examples of the communication system between the brain and the gut: a pit in your stomach, butterflies in your stomach, and gut feelings are all expressions we accept as standard. But beyond expressions, there’s a very real connection between our feelings and our biology. Because our brain and our enteric nervous system have a complex communication network, an imbalance in gut bacteria can lead to emotional stress and vice versa. Dr. Emeran Mayer is a world-renowned gastroenterologist and neuroscientist with over 40 years of experience studying the complex and bidirectional relationship of the brain and the gut. He has published over 400 peer-reviewed scientific articles, written two bestselling books, and is a leading expert on all things gut and microbiome. On today’s show, he’s sharing the fascinating science on the relationship between our gut and our feelings. This interview contains conversations on how the brain and gut communicate, including how the gut responds to stress. You’ll learn about the interesting way microbes respond to diet changes, and how human cells and microbial cells differ when it comes to adaptation. Dr. Mayer is sharing the latest science on gut health, as well as realistic tips you can use to improve your microbial health, extend your lifespan, and support your gut for years to come. In this episode you’ll discover: The evolution of the human gut. How the brain and gut communicate.  Why the body empties the gut in a fight or flight situation. The role stress plays in infections like H. pylori. Why overuse of antibiotics is harmful to young children. How mindfulness and meditation can impact your genes. What a healthy lifestyle network is, and why it contributes to longevity. Two behaviors that influence healthy gene expression. Why our microbes can adapt quickly to diet changes. How changes in technology and lifestyle have created a genetic mismatch. The connection between hormones and microbes. How corporate interests can block important research. What it means to have gut feelings. The importance of considering biases and trauma when making a gut decision. Why focusing on microbial health disproves most fad diets. The fascinating science of prenatal microbial development. How to change the health of your microbiome. The importance of consuming short-chain fatty acids. How stress and fear affect the microbiome. The potential harm of colonoscopies, & the best way to reduce your risk of colon cancer. Items mentioned in this episode include: PiqueLife.com/model -- Use code MODEL at checkout for 10% off! Ettitude.com/model -- Use the coupon code model15 for 15% off organic bedding!  The Mind-Gut Connection by Dr. Emeran Mayer The Gut-Immune Connection by Dr. Emeran Mayer Connect with Dr. Emeran Mayer Website / Facebook / Instagram  Join TMHS Facebook community - Model Nation Be sure you are subscribed to this podcast to automatically receive your episodes:  Apple Podcasts Stitcher Spotify Soundcloud *Download Transcript