Vagus nerve dysfunction may seem minor, but it disrupts the electrical pathways your body uses to regulate inflammation, stress, and metabolic control. Dave Asprey talks with Dr. Kevin Tracey about how impaired vagus nerve signaling affects immunity, HRV, neurotransmitters, and long-term brain and body performance. You'll learn how the inflammatory reflex works, why the vagus nerve contains 200,000 fibers with different roles, and how neural communication shapes emotional regulation, energy outp