How healthy is your brain—and how do you really know? In this episode, Dr. Joe Casciani and the Living to 100 Club welcome Dr. Mark Tommerdahl, a leading neurophysiologist and co-founder of Cortical Metrics. Together, they explore the science behind the Brain Gauge, a groundbreaking tool for objectively measuring brain health. The Brain Gauge is a cognitive assessment tool that uses touch-based sensory testing to measure mental fitness. Mark shares how this compact device is now being used to track age-related cognitive changes, support autism research, and improve concussion recovery. This device is even capable of guiding lifestyle changes for better mental performance. Listeners will learn about the science of sensory-based neurofunctional testing and the critical role of executive function and cognitive processing. What are the benefits of brain training as a complement to other treatments? We also discuss new sensory-motor exercise technology. How can it improve brain function? And understand the evolution of a 20-year health project that’s now available to professionals and individuals alike.