Biohack Your Brain: How to Boost Cognitive Health, Performance & Power by neuroscientist Dr. Kristen Willeumier is a practical and science‑backed guide to optimizing the way your brain functions at any age. Drawing on clinical research and real‑world case studies, Willeumier explains how lifestyle choices in areas like nutrition, exercise, hydration, sleep, stress management, and mental training can directly influence cognitive health, memory, focus, and emotional resilience. The book offers clear, actionable strategies to protect against cognitive decline, enhance mental performance, support brain repair after injury, and cultivate habits that nourish your brain for stronger memory, sharper thinking, better energy, and overall vitality.