"Once an athlete, always an athlete." There is no finish line when it comes to athletic performance. You can continue building on everything you've achieved at any age, adapting your approach while never giving up on your potential. This comprehensive guide serves as your roadmap to optimal performance in any sport, at any stage of life. Dr. Roxanne Carfora combines decades of expertise in anti-aging, regenerative, and functional medicine to deliver practical strategies that work in the real world. From precise dietary calculations and activity-specific nutritional recommendations to targeted exercise protocols and understanding hormonal changes, this book covers everything you need to know about fueling your body for peak performance. You'll discover how to listen to your body's signals to prevent injury, when to push forward, and when to prioritize recovery. Rather than telling athletes to slow down, this book teaches you exactly how and when to feed your cells so your body can access its stored energy and deliver when you need it most for endurance and strength. Whether you're a weekend warrior, returning to fitness after time away, or a lifelong competitor, you'll find both complex scientific insights and simple, actionable steps. This isn't about following rigid formulas. It's about building a personalized approach that grows with you through every season of life. Your mission, your performance, your athleticism, your body. No finish line means you may adjust your pace, but you never stop moving forward. "There are no secondary goals when it comes to resilience, longevity, and function."