Book excerpt: Keep your brain young, healthy, and sharp with this science-driven guide to protecting your mind from decline by neurosurgeon and CNN chief medical correspondent Dr. Sanjay Gupta. Throughout our life, we look for ways to keep our minds sharp and effortlessly productive. Now, globetrotting neurosurgeon Dr. Sanjay Gupta offers “the book all of us need, young and old” (Walter Isaacson, #1 New York Times bestselling author of The Code Breaker) with insights from top scientists all over the world, whose cutting-edge research can help you heighten and protect brain function and maintain cognitive health at any age. Keep Sharp debunks common myths about aging and mental decline, explores whether there’s a “best” diet or exercise regimen for the brain, and explains whether it’s healthier to play video games that test memory and processing speed, or to engage in more social interaction. Discover what we can learn from “super-brained” people who are in their eighties and nineties with no signs of slowing down—and whether there are truly any benefits to drugs, supplements, and vitamins. Dr. Gupta also addresses brain disease, particularly Alzheimer’s, answers all your questions about the signs and symptoms, and shows how to ward against it and stay healthy while caring for a partner in cognitive decline. He likewise provides you with a personalized twelve-week program featuring practical strategies to strengthen your brain every day. Keep Sharp is the “must-read owner’s manual” (Arianna Huffington) you’ll need to keep your brain young and healthy regardless of your age!