New Books In Science

The vagus nerve is fundamental to our health and vitality, coordinating critical functions from the precise heartbeat we need to exercise or rest to the balance of appetite and digestion. Made up of 200,000 fibers, the vagus nerve sends thousands of electrical signals every second between your brain and your most important organs. Yet despite its essential role in life, important vagus nerve functions have eluded centuries of scientific investigation. Now neurosurgeon and researcher Dr. Kevin Tracey has discovered the previously unknown power of the vagus nerve to reverse inflammation, balance the immune system, treat chronic illness, and keep our organs humming together in harmony.In The Great Nerve: The New Science of the Vagus Nerve and How to Harness Its Healing Reflexes (Penguin, 2025), Dr. Tracey shows us how stimulating the vagus nerve with a tiny electrical implant has the potential to reverse life-altering diseases like rheumatoid arthritis, inflammatory bowel disease, lupus, MS, diabetes, obesity, s