The NYT bestseller by the author of Grain Brain uncovers the powerful role of gut bacteria in determining your brain's destiny. Debilitating brain disorders are on a steep rise--from children diagnosed with autism to adults developing dementia at younger ages than ever before. But a medical revolution is underway that may finally solve these problems: astonishing new research reveals the influence of the human microbiome-bacteria living in the gut--on every aspect of health, including your nervous system. In BRAIN MAKER, Dr. Perlmutter explores the interplay between intestinal microbes and the brain and describes how the microbiome emerges from birth and evolves based on the environment, how it can become dysfunctional, and how nurturing gut health through a few easy strategies can alter your brain's destiny for the better. With simple dietary recommendations and a practical 6-step program, BRAIN MAKER opens the door to unprecedented brain health potential.