Understanding How The Microbiome Affects Ever...

Around the world, we’re seeing declining sperm counts, rising infertility, more erectile dysfunction, and lower testosterone—even in younger men. These trends aren’t just affecting family planning; they’re pointing to something much bigger happening in men’s health. Joining me to ...  Show more

What’s Really Driving Infertility—and What You Can Do About It Fertility struggles are far more common than most people realize—and far more complex than we’re often told. Today I answer listener-submitted questions on fertility, hormone balance, and preparing your body for conce ...  Show more

// R E A D Y • S E T • R E S E T In this episode, we talk all about what conditions in the gut suppress the immune system the most. Plus, Dr. Mayer reveals which diets hurt the microbes in our guts and which diets help the microbes in our gut. Dr. Emeran A Mayer is a Gastroentero ...  Show more

My guest this episode is Dr. Justin Sonnenburg, Professor of Microbiology & Immunology at Stanford University. Dr. Sonnenburg’s research focuses on how microbes in our gut impact our mental and physical health and how diet and your environment shape your gut microbiome. We discus ...  Show more

Over the last few decades, the human environment has changed significantly. We’ve introduced new technologies, foods, and inputs into our daily life such as the widespread use of antibiotics, ultra-processed foods, and much more. But what we’ve overlooked is that rapid and extrem ...  Show more

In this episode of The School of Greatness, Lewis speaks with Dr. Will Bulsiewicz, a renowned gastroenterologist, gut health expert, and best-selling author known for his work in making gut health education accessible. Dr. B explains the critical connection between gut health ...