You Don't Need a Better Memory. You Need a Better System.

Oct 5

You walked into another room for something and now you're just standing there. You've re-read the same paragraph four times. You said "I'll remember that," and then you... didn't.

If this is new, or it's gotten sharply worse over a short period, mention it to your provider — a real, sudden change in cognition deserves a look. But if it's been a slow, familiar companion for months or years, perhaps worse at different points in your menstrual cycle, there's a good chance this isn't a sign of early dementia (or a personal failing). It's a mismatch: your brain is being asked to hold onto more than it currently has free capacity for.

Why your brain is working harder than it should be

If you're hypermobile — hypermobile Ehlers-Danlos syndrome (hEDS) and hypermobility spectrum disorder (HSD) are two common diagnoses — there's real data behind your brain fog. A 2025 study of 385 people with hEDS or hypermobility spectrum disorder found that those with more orthostatic intolerance symptoms — dizziness, lightheadedness, a racing heart on standing — also reported more cognitive complaints.

This is likely related to dysautonomia, which is more common in those with hypermobility syndromes. People with dysautonomia often have difficulty maintaining blood pressure to the brain with position changes, which can cause cognitive symptoms like dizziness and brain fog. A 2025 brain-imaging study found that 61% of people with postural orthostatic tachycardia syndrome (POTS), a common form of dysautonomia, and cognitive symptoms showed reduced blood flow to the brain — most often in the prefrontal and sensorimotor regions — even while resting quietly, lying down. Separate neurocognitive testing in POTS has also turned up measurable deficits in attention and processing speed. Exactly how blood flow and attention interact in POTS is still being worked out, but the fog itself isn't just a feeling; it shows up on both imaging and on cognitive testing.

Mast cell activation syndrome (MCAS) is also disproportionately common in hypermobile people, and it commonly comes with its own cognitive and psychiatric symptoms: trouble concentrating, word-finding difficulty, mood changes. The exact mechanism isn't settled, but the connection between MCAS and brain fog is well documented.

ADHD also shows up at higher rates in hypermobile people. And clinically, ADHD symptoms are often reported to flare up premenstrually and during perimenopause specifically. Why?

It's the hormones. During perimenopause, fluctuating estrogen affects how the brain uses energy — one proposed mechanism behind the cognitive shifts many people notice. A 2023 review of the evidence found that the most consistent finding across studies is a hit to verbal memory and verbal learning specifically: not a general mental dulling, but a dip in the systems that hold onto and retrieve words. Estrogen is also important for dopamine signaling, a key part of executive functioning — and one of the areas ADHD affects.

Several different mechanisms. Same experience: your brain asking more of itself just to do what it used to do without noticing. Here we propose one potential solution: external scaffolding.

What external scaffolding actually is

External scaffolding means building one system outside your own head — a shared doc, a whiteboard, a specific notes app, whatever actually fits your life — and letting it hold what your brain used to be expected to hold on its own. Think of oral tradition poets who have used the predictable drumbeat of rhythmic poetry to scaffold their epic tales. Instead of trying to remember every detail in the moment, you build something external and reliable to carry that job for you. Not a better planner. Not a more disciplined you. A place outside your head where the information lives, so your head doesn't have to carry all of it.

This has a name in cognitive science: offloading. Researchers distinguish between offloading "onto the body" — a physical action like gesturing or tilting your head to reduce what your brain has to track — and offloading "into the world" — writing something down, setting a phone reminder. Both are legitimate, well-studied ways people reduce the mental load a task demands. This isn't a workaround for a brain that isn't working. It reflects how cognition has always distributed itself across mind, body, and environment, for everyone, all the time. It's not a replacement for building internal capacity or medically managing your symptoms, but a complementary strategy alongside it.

The goal isn't to train your memory into getting sharper through sheer repetition. It's to stop asking your memory to do a job that an index card, a calendar, or a group chat can do instead.

The evidence for this comes mostly from cognitive rehabilitation research in other chronic conditions. A 2026 systematic review looking at compensatory cognitive strategies in multiple sclerosis found small-to-medium improvements in memory and learning among people using a mix of attention, internal-memory, and external-memory strategies, alone or in combination. It's a different population than this one, but the underlying logic — reduce the internal load, build support outside the brain — holds up.

What this looks like, practically

Pick one domain where things are currently falling through: medications, appointments, a recurring task at work, whatever you forget most often. Build exactly one external system for it. Not five systems. One.

Red carpet design — habit science's term for removing friction until the easy path and the right path are the same path — matters enormously here. A system you have to remember to check is just another thing to remember. A system that's already sitting where you naturally look is one you'll actually use. Think about where decisions already happen in your day: by the door, next to the coffee maker, in the one app you check without being asked to. Put your system there, not wherever it "should" logically live.

This is also where habit stacking does real work: attach checking the system to something you already do every day without fail, like brushing your teeth or starting the coffee maker, instead of trying to build an isolated habit of "remembering to check my system."

A few examples, not a prescription: a shared note with your partner or roommate for anything time-sensitive. A single running list — paper or digital, whichever you'll actually open — instead of trying to hold appointments, groceries, and to-dos in three separate mental folders. A medication organizer you fill once a week instead of trusting same-day memory. A recurring phone reminder set at a time you're actually near the thing it's reminding you about, not just "sometime in the morning."

One system, not a system for everything

Resist the urge to build an elaborate setup all at once. An overbuilt system is just as easy to abandon as no system — it asks for its own kind of upkeep, and upkeep is exactly the resource that's already running low. Start with the one area causing the most friction right now. Add a second system only once the first one has become automatic.

None of this replaces an actual cognitive workup if symptoms are new, rapidly worsening, or paired with other red flags. This habit is for the familiar, chronic kind of brain fog that comes with these conditions — not a substitute for ruling out something else going on.

The bigger picture

The BENDY Method is a 12-week habit-based course for perimenopause and menopause in bodies with hEDS, HSD, MCAS, POTS, dysautonomia, and related presentations. Join the waitlist to be first to know when enrollment opens.

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