Not always, and that is the most useful thing to know about it. Three things happen from here: some people progress to dementia, some remain much the same for years, and some return to normal cognition. Which applies depends largely on what is causing the impairment.
Not always, and that is the most useful thing to know about it. Three things happen from here: some people progress to dementia, some remain much the same for years, and some return to normal cognition. Which applies depends largely on what is causing the impairment.
Mild cognitive impairment is not a one-way road, and presenting it as an early stage of dementia misrepresents the evidence. Longitudinal studies consistently find three outcomes. A proportion progress to dementia. A proportion remain stable over years of follow-up. And a proportion revert to normal cognition on repeat testing. Reversion is often treated as a testing error, and while some of it is regression to the mean, much of it reflects a contributor that was present at the first assessment and had resolved or been treated by the second.
Several features shift the odds without determining the outcome. Impairment that is predominantly in memory, rather than in attention or executive function, is more often associated with an underlying Alzheimer's process. Impairment across more than one cognitive domain, greater severity at first assessment, and vascular disease on imaging all raise the likelihood of progression. Biomarkers of amyloid and tau change the picture substantially, but they raise their own questions about what a person gains from knowing, and that conversation should precede the test rather than follow it.
Rather than waiting to see which trajectory applies, the modifiable contributors are addressed, because several of them influence cognition immediately as well as over the long run. Obstructive sleep apnoea. Hearing loss, which is one of the more substantial modifiable risk factors identified for dementia. Depression. Blood pressure. Thyroid function and vitamin B12. Alcohol. The cumulative burden of sedating and anticholinergic medicines, which is often the easiest single thing to change. Physical activity and social engagement have supporting evidence.
The trajectory carries the information, so structured cognitive testing is repeated at intervals and the results are read as a series rather than individually. Two or three stable assessments say something a single score cannot. Between visits, an account from someone who sees the person regularly is genuinely valuable, since self-report is unreliable in exactly this situation. Blood tests are arranged locally, and where imaging is indicated it is performed at an imaging centre with the report reviewed with you here. Adults 18 and older are seen at either office.
Clinical Neurology Specialists has been physician-owned since 1998, when Leo Germin, M.D., FAANEM founded it. Five board-certified neurologists and four advanced practice providers see patients at the Las Vegas and Henderson offices, each with its own AANEM-accredited electrodiagnostic laboratory.
Clinical Neurology Specialists is an adult outpatient neurology practice for patients 18 and older. The practice performs no surgery and operates no imaging suite, infusion suite or interventional pain programme, and provides no emergency or inpatient care.
Physician-reviewed. Reviewed by the physicians of Clinical Neurology Specialists — board-certified neurologists, AANEM-accredited electrodiagnostic laboratories, physician-owned since 1998. Reviewed 1 August 2026. This article is general education for adults 18 and older and is not a substitute for a consultation.
Sources and further reading: MedlinePlus: memory; National Institute on Aging; MedlinePlus: dementia.
Adults 18 and older, at the Las Vegas and Henderson offices. Call 702-804-1212 or request an appointment online.