Part 5/14:
Huberman underscores that the efficacy of these defense layers depends significantly on the health of the mucus lining and the microbiome—the community of beneficial bacteria residing within our mucous membranes and gut. A healthy microbiome supports mucus turnover and chemistry, enhancing barrier function and reducing susceptibility to infections. Practices such as breathing through the nose periodically and avoiding unnecessary eye contact with contaminated surfaces can lower infection risk. Incorporating fermented foods like sauerkraut, kimchi, and natto bolsters gut microbiota diversity and function, further strengthening immune defenses.