September is World Alzheimer's Month, with World Alzheimer's Day on 21 September. Alzheimer's Disease International's 2026 campaign theme is «The Earlier You Know, The More You Can Do: A Dementia Diagnosis Matters».
It is a theme that lends itself to posters. It also lends itself to an uncomfortable question, and that is the one worth asking inside an institution.
The number that matches the theme
A cross-sectional study across 423 Portuguese residential care homes, by researchers at the Universities of Coimbra and Aveiro within the SINDIA project and published in Acta Médica Portuguesa, found on average: roughly a third of residents with a formal dementia diagnosis, and roughly a fifth with suspected cognitive decline and no diagnosis on record.
We wrote about what that changes in running a session in undiagnosed cognitive decline in care homes. What matters here is different: that fifth is exactly the population the campaign is about. These are not people undiagnosed in some distant clinic — they are in an institution, seen by staff every day.
Diagnosis is a clinical act. Nothing in this article, and nothing in a virtual reality headset, replaces an assessment. What an institution can do is shorten the path to one.
Why «earlier» changes anything
The honest objection arrives early: why diagnose, if there is no cure? It has three answers, none of them a therapeutic promise.
It changes what is reversible. Some suspected dementia is not dementia: it is depression, hypothyroidism, B12 deficiency, medication effects, a urinary infection, or poorly corrected hearing and vision. Without assessment those are indistinguishable — and they are treatable.
It changes the decisions the person can still make alone. Where to live, what care to receive, who decides when they no longer can. A late diagnosis takes away the window in which those decisions are still theirs — and Portugal's Statute for Older Persons makes that autonomy a right.
It changes how the team reads behaviour. «He's being difficult» and «he has a condition affecting his language» produce different care, from the same people on the same budget. And the specific condition changes what works in an activity, as we describe in types of dementia.
Five things to do this month, depending on no one
None needs a budget, and none needs technology:
- Count. How many residents have a diagnosis in their file? For how many is there written suspicion with no assessment? The gap between those two numbers is September's work.
- Write the observation, not the impression. «Asked the same question four times in twenty minutes, on 3 September» is useful in a consultation. «He's more confused» is not.
- Check hearing and vision first. A hearing aid with no battery and an un-operated cataract both imitate cognitive decline — and are the two easiest things to rule out. Hearing loss is, in fact, among the heaviest items on the list of 14 risk factors.
- Take the list to the attending physician, with dates. A dated sequence of observations is worth more in a twenty-minute consultation than the memory of whoever is on shift.
- Talk to families. September is the perfect excuse for the conversation everyone keeps postponing, and that is precisely what the campaign is for.
What technology does here, and what it does not
It does not diagnose. No virtual reality session assesses, grades or detects dementia, and be wary of anyone implying otherwise.
What a consistent session record gives is raw material for whoever does assess: what was used, for how long, how the person reacted, what interrupted it — dated observations of functioning outside the consultation, which is where most of life happens. A good activity log gives the same thing; the difference is that this one is easier to keep.
The rest of what we do — reminiscence, stimulation, comfort — is wellbeing and activity, measured in how the afternoon went. It does not alter the course of the disease, and this month's campaign is not asking anyone to claim that.
The RVer platform's base product is a Class I medical device registered with Infarmed. Sessions are run by the institution's own professionals, complement existing care and do not replace assessment, diagnosis or clinical follow-up.