The devastating truth about the effects of wheat, sugar, and carbs on the brain, with a 4-week plan to achieve optimum health. In Grain Brain, renowned neurologist David Perlmutter, MD, exposes a finding that's been buried in the medical literature for far too long: carbs are destroying your brain. Even so-called healthy carbs like whole grains can cause dementia, ADHD, epilepsy, anxiety, chronic headaches, depression, decreased libido, and much more. Groundbreaking and time