10/22/2026
Your brain has an age. It might not match your birthday.
Researchers at UCLA scanned the brains of nearly 1,500 adults and built one simple number: the gap between how old a brain looks and how old the person actually is. Across all three groups they studied, people whose brains looked older generally did worse on working memory and executive function, the part of your thinking that holds an idea in your head while you decide what to do with it. The part that runs your meetings.
Here is what stopped me. These were not seventy-year-olds. The study was of young and mid-life adults, people in the exact decade where you are making the biggest decisions of your career. And in one of those groups, an older-looking brain went along with a different pattern of gut bacteria.
I want to be honest about what this study is and what it is not. It is a snapshot, not a verdict. It shows an association. It does not show that your gut is aging your brain. But it changes the question you get to ask.
In this week's video I walk through what UCLA measured, the gut piece (which is smaller than the headlines make it sound), every limit, and three things a high performer can sensibly do with information like this. The short version: brain fog is a data question, not a character question, and the sensible response to a map is measurement, not panic.
If this sounded like your afternoons, the first step is a conversation, not a purchase. Book a free Clarity Call: https://call.thehealthplex.co
Or go straight to your own data with the Root Reveal Gut Panel: https://labs.thehealthplex.co/
Full video is on the channel today. Educational content, not medical advice.
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