Functional medicine pioneer and author of The Microbiome Diet offers his groundbreaking, medication-free, scientifically based approach to healing depression, anxiety, and brain fog by focusing on your "whole brain"--the brain, the gut, the microbiome, and the thyroid. If you are one of the millions of people who feel that your brain just "isn't working right"--that you have brain fog, memory loss, depression, anxiety, or that your ability to maintain a balanced, happy mood has been lost long ago--take heart. The problem is not "in your head," it is in your microbiome (the trillions of health-promoting bacteria) and your gut--and there are proven natural solutions that can help you not only reduce symptoms but also improve your vitality, cognitive function, and zest for life. A pioneer in holistic and functional medicine, Dr. Raphael Kellman has spent the last two decades treating countless patients with complaints like these. Through years of research, he developed a groundbreaking approach to brain health that goes far beyond conventional understanding of the brain. The Whole Brain introduces you to the complete system that affects your mental health: not just your brain, but your gut, microbiome, and thyroid as well. You'll learn about the latest cutting-edge science, and will discover The Whole Brain Protocol. This powerful four-week plan advises you exactly what to eat and which supplements and probiotics to take, so that your brain functions at its deepest level, every day, all the time. Along with delicious, health-supporting recipes, meal plans, and other tips and strategies, The Whole Brain will help you make your own brain work better so that you can feel calm, energized, clear, sharp, and optimistic--without prescription medications.