The tray in my hands is still warm from the toaster line at Corner Bakery Cafe on Legacy Drive when my wife says our old neighbor's name, a name neither of us had mentioned out loud in months, and the whole file comes back complete before she's even finished the sentence: the guy's dog, his ridiculous leaf-blower schedule, the birthday he always forgot until October. That's not the kind of thing I expected to notice about my own cognitive function this deep into retirement, and it's exactly the sort of data point that ends up in my brain health spreadsheet instead of just staying a nice moment at breakfast.
Full disclosure before you go any further: this site runs on affiliate links, including a couple you'll see below. If you click through and buy something, I earn a small commission at no extra cost to you, and it doesn't put a dent in my objectivity, or at least that's what I keep telling my wife. I'm not a doctor, not a neuroscientist, just a retired numbers guy running a supplement spreadsheet with more tabs than my old tax returns ever had.
Why Supplement Tracking Looks Like an Audit to Me
People ask me a lot of questions about brain health and cognitive function these days, now that supplement tracking has turned into a retirement hobby nobody asked for. So here are the ones that come up most, answered straight, instead of wrapped in another story about a spreadsheet.
My home office used to be a spare bedroom, and it still looks like one that lost a fight with a filing cabinet: one monitor open to the master tracking sheet, the other to whatever ingredient I'm chasing down that week, a whiteboard covered in more question marks than answers, and a shelf of bottles lined up in the order I started testing them, the closest thing I have to a filing system for a body part I can never actually see.
Somewhere under all of it sits a genuinely enormous number: the brain runs on roughly 86,000,000,000 neurons, which is bigger than anything I ever balanced in thirty years of ledgers, and it's the one part of this whole operation I don't pretend to understand mechanically. I just watch what shows up on the output side.
The First Red Flag on My Ledger
A client's name disappeared mid-meeting the first time, which had never happened to me in thirty years, and I waved it off as fatigue the way most guys my age probably do.
It happened twice more within a season, and that's roughly when I started noticing early memory changes weren't just tiredness but a pattern showing up in a column I hadn't thought to create yet.
Six Months of Fish Oil, Zero Return
Readers ask if anything just flat-out failed, and yes: fish oil capsules from Costco, taken every single morning for six months, did about as much for my recall as vitamins dissolved in coffee and forgotten about by lunch.
I tracked the whole stretch, and the line on that chart stayed as flat as a bad quarter, a consistent input for half a year with an output column that never moved, which counts as an answer even when it isn't the one you wanted. In accounting terms, that's a negative return, plain and simple.
Is What You're Feeling the Supplement, or Just the Placebo of Paying Attention?
That's the question I hear most, and it's a fair one.
Watching yourself this closely means noticing things you'd otherwise miss, supplement or not, which is exactly why a placebo baseline matters more than most home testers ever bother to set up.
Nothing about my process is clinical, but I do log a few weeks of doing nothing new before adding anything, just so there's a number worth comparing against.
The audio program I've stuck with longest, The Brain Song, is one of the few things that showed a real gap against that kind of baseline, instead of just against my mood on a given day.
Comparing Two Audio Programs Isn't Like Comparing Two Capsules
Comparing two things that work in completely different ways is the other question that comes up constantly.
Two audio programs at least measure something similar — timing, consistency, how a session feels — while stacking an audio program against a capsule is closer to comparing a subscription against a one-time purchase.
Running the numbers on that exact question turned into a data audit comparing audio tools, and the short version is they didn't behave the same on my tracking sheet even though the marketing pages read almost identically.
That gap between what a label promises and what a spreadsheet actually shows is the reason I stopped taking product descriptions at face value, and it's also why I started reading the ingredients panel more carefully than the paragraph sitting above it.
Does Time of Day Change What You're Measuring?
Yes, and it took longer than it should have to control for.
Afternoons were never as sharp as mornings for me, and for a stretch I credited that entirely to whatever I'd taken after breakfast, when a good chunk of it was just an ordinary afternoon dip that has nothing to do with any supplement.
Coffee made this harder to track, not easier. Caffeine is such a strong confounding variable that testing anything on a morning that started with two or three cups means you're not really isolating what you think you're isolating.
Sleep and the Word-Finding Column
Sleep turned out to be the other variable I underestimated for longer than I'd like to admit.
A rough night wrecks a test day worse than skipping the supplement entirely, which makes sleep quality one of the bigger confounds in any home-tracking setup.
The column I watch closest these days isn't focus, it's verbal recall. How fast a word actually surfaces when I'm reaching for it, because that's the one that shows up in real conversation instead of a quiz I invented myself.
None of this works without real structure behind it, either. Building a tracking sheet that actually separates one variable from another is a bigger job than it looks from the outside, closer to setting up a proper chart of accounts than jotting notes in a journal.
Why My Wife's Fog Doesn't Follow My Spreadsheet
My wife went through her own version of this around the same stretch, and her triggers weren't mine.
Her hormonal chemistry isn't something I understand better than she does, so I stopped trying to fold her results into my columns as if we were tracking the same variable.
One thing we did agree on: some tools translate across the board better than others. The Brain Song was one of them, mostly because it isn't adjusting anything internally the way a capsule does. It behaves more like an external input than a chemical one.
For anyone who'd rather stick with a traditional capsule and doesn't mind a noticeably higher price point, NeuroPrime is the one I hear about most from readers who want that format specifically.
What I Tell Readers Who Ask If Any of This Actually Works
A reader named Dorinda Szymanski, a retired nurse up in Wisconsin who built her own tracking sheet after finding my site through a Reddit thread, sent me a version of this question a few weeks back, and she's sharp enough to catch it whenever my placebo controls get sloppy, which happens more often than I'd like to admit.
My honest answer is the same one I give Neil Trevisan, an old colleague from the firm who calls to talk me out of whatever I'm convinced of that week: it works well enough to keep tracking, not well enough to stop checking.
Neil's usually the first call I make whenever I think I've found something big, because he asks the one question that actually matters before I get carried away.
Where the Ledger Stands Now
If you want one takeaway instead of nine answers, here it is: track something before you spend money changing it, and don't trust a good week any more than you'd trust a single good sales quarter.
The tool that's stayed in my routine longest, and the one I point people to first, is The Brain Song, not because it's magic, but because it kept showing a difference even after I'd gotten bored of looking for one.
Thirty years of tax seasons taught me to distrust anything that looks good on the first pass. This is the first system for my own head that's survived more than one.