Book excerpt: "A comprehensive resource patients and patient-educators can use to prevent and reverse illnesses of aging. David was obese, depressed, and headed for a heart attack, Keto chemistry pumped life back into his brain, relationships, and business. Dr. Bosworth uses David's story to teach how to implement keto chemistry and stay consistently keto. Based on research in neuroscience, metabolism, substance abuse, diabetes, and psychology, this essential guide provides evidence-based strategies and practical tools to understand, support, and educate resilient, healthy lives. This guidebook reflects the actionable steps used in Dr. Bosworth's clinic--from preparing for success, to navigating the transition into ketosis, to forming a support group"--