This podcast episode focuses on maintaining a healthy immune system, particularly relevant for individuals exposed to frequent illnesses. Dr. Huberman poses the question of how to avoid getting sick, and Dr. Seheult responds by outlining the "START" principles: Nutrition, Exercise, Water (including external applications like saunas), Sunlight, Temperance (avoiding toxins), Air (including phytoncides from nature), Rest, and Trust (including community and stress reduction). Dr. Seheult emphasizes that mild to moderate exercise reduces inflammation, and sufficient sleep is crucial for immune function. The discussion provides actionable steps for bolstering one's immune health.