The #1 New York Times bestseller that exposes the truth about the devastating effects of wheat, sugar, and carbs on the brain. World-renowned neurologist David Perlmutter, MD, blows the lid off a topic that's been buried in medical literature for far too long: carbs are destroying your brain. Even "healthy" carbs like whole grains can increase risk for dementia, ADHD, anxiety, chronic headaches, depression, and more. In this innovative and persuasive book, Dr. Perlmutter explains what happens when the brain encounters common ingredients in your daily bread and fruit bowls, why your brain thrives on fat and cholesterol, and how you can spur the growth of new brain cells at any age, take control of your "smart genes," and remedy your most feared maladies without drugs. With a revolutionary four-week plan, GRAIN BRAIN helps you reprogram your genetic destiny for a vibrant future.