Inside the quality of your attention, the speed of your decisions, and your ability to be fully present lies one of the clearest indicators of your long-term health. And yet, cognitive health is often misunderstood, especially by high performers. It’s easy to mistake activity for progress: a crossword puzzle in the morning, a brain-training app downloaded with good intentions, a vague sense that staying “mentally busy” is enough.
But focus, memory, and clarity aren’t built through isolated exercises. They’re the product of how the brain functions across an entire day: how it manages stress, recovers, and allocates energy in real time.
At Sensei’s Porcupine Creek luxury wellness retreat co-founded by Larry Ellison in Rancho Mirage, California, Trevor Tellin’s work helps guests to rethink that model. As Sensei’s Corporate Mindset Manager, he focuses less on quick fixes and more on building what he calls cognitive fitness, the ability to consistently show up with clarity, adaptability, and presence when it matters most.
No, Your Jigsaw Puzzle Is Not Fighting Off Dementia
Most high performers, when they think about maintaining mental sharpness, reach for the same tools: Sudoku, word games, and the like. Tellin isn’t dismissive of these, however he’s honest about their limits.
“You’re going to get really good at crossword puzzles,” he says. “But the other areas of life it might not show up in. And that’s what we’re really after at the end of the day.”
Practicing isolated brain games sharpens those specific skills without meaningfully improving your everyday performance in focus, decision-making, memory, and what Tellin calls “cognitive flexibility,” AKA, the ability to shift between ideas, conversations, or problems fluidly. The second misconception runs a bit deeper. Guests often arrive at Sensei, with a fixed narrative: I’ve never been great at remembering details. I’ve always been slow to process.
Tellin’s response is consistent: that’s probably a story, not a fact—and stories can be revised.
What Cognitive Fitness Actually Is
Tellin defines it simply: “Being able to show up in the moment and perform how we desire or need to.” That means remembering the key points in a high-stakes meeting, staying present on vacation without the pull of the inbox, or following a complex conversation to its end without losing the thread.
Part of what makes cognitive fitness difficult to address is that its enemies are invisible…yet constant. Every notification, every news alert, every back-to-back decision pulls on the same finite reserves. When the nervous system is chronically stressed, oxygen and resources stop flowing to the brain efficiently. Stack enough days like that and the reserves start to erode.
The Three Levers That Actually Matter
Sensei’s new Cognitive Fitness collection, launched last month, gives guests a structured entry point: a first session built around the CNS Vital Signs assessment, a tool that maps how your brain is performing. A second session builds upon the assessment and features the Reflexion Edge board, a six-foot-wide light board composed of 2,688 LED lights that puts cognitive skills to the test through a series of dynamic drills. But the work doesn’t stay on property. When guests ask what they can carry home, the Sensei team returns to the same three foundations every time.
First and foremost: sleep. Not as a reward at the end of a productive day, but as a prerequisite for everything that follows. Your brain’s ability to consolidate memory, restore focus, and regulate mood (perform as it should) depends on the quality of rest preceding it.
Second: aerobic fitness, specifically Zone 2 cardio. Zone 2 helps to build your aerobic base, meaning it helps your capacity for endurance and strengthen your HRV (heart rate variability)—two other key factors in your overall health span and longevity. If you don’t have a smart device to tell you when you’re in zone 2, you can define it as the amount of effort that keeps your heart rate elevated but conversational. It should be a pace you could hold for hours. This kind of training, because of its effects on your endurance capacity, increases blood circulation and oxygen delivery to the brain. The research, Tellin says, is unambiguous.
Third: stress management, which Tellin defines as, “A sense of awareness that stress is present and then having the outlets to actually do something with it.” Awareness without action isn’t management.
These aren’t workarounds. They’re foundations. And for the high-achieving executives that frequent Sensei’s Palm Springs resort —those who operate at a speed that keeps the nervous system in near-constant overdrive—getting the foundations right starts to put everything else in motion.
Explore Sensei’s new Cognitive Fitness collection here.
