Most “senior moments” are a normal part of getting older. A few patterns are worth taking seriously — and the difference is learnable.
Forgetting where you parked is not the same as forgetting that you drove. The first is ordinary. The second is the kind of thing worth mentioning to a doctor. Knowing roughly where that line sits can save you a lot of needless worry — and, occasionally, catch something while it's most treatable.
We're not doctors, and this isn't a diagnosis. But the distinction between normal age-related change and something worth evaluating is well described in public guidance from the Alzheimer's Association and the National Institute on Aging, and it's worth understanding.[1][2]
As we get older, the brain genuinely changes, and some slowing is expected. The National Institute on Aging describes typical, unalarming changes:[2]
The common thread: the lapse is occasional, you're aware of it, and it doesn't derail your ability to live your day.
Public guidance from the Alzheimer's Association describes warning signs that are better discussed with a professional rather than waved off.[1] Among them:
Normal aging slows you down. The warning signs interrupt your life — and tend to be noticed by the people around you, not just by you.
Here's the genuinely reassuring fact. Many causes of memory and thinking changes have nothing to do with dementia. Mayo Clinic lists medications, minor head injury, emotional conditions such as stress, anxiety or depression, alcohol use disorder, vitamin B-12 deficiency, an underactive thyroid, and untreated sleep apnea among the causes of memory loss — and notes that “most of these conditions can be treated,” and that a clinician can screen for the ones that cause reversible memory loss.[3] That's a big reason not to sit in silence and worry: a basic workup can rule those in or out, and several are simple to fix.
The goal of a doctor's visit isn't to confirm your fear. Often it's the opposite — to find the boring, fixable reason you've felt foggy.
Two practical things have changed. First, if you're on Medicare, the yearly “Wellness” visit already includes a brief cognitive assessment — a check for trouble with memory, learning, and concentration — at no cost to you when the provider accepts assignment, and Medicare covers a fuller evaluation if that check raises a flag.[5] That's the lowest-friction way to raise the subject: it's on the agenda anyway.
Second, in May 2025 the FDA cleared the first blood test to help diagnose Alzheimer's disease — a measure of two proteins in blood plasma that indicates whether amyloid plaques are likely present. It's for adults 55 and older who already have symptoms, it's used in specialist settings, and the FDA is explicit that it is not a screening test and not a stand-alone diagnosis; results are read alongside the rest of the workup, and false positives and negatives happen.[6] It doesn't change what you should do — see someone if the patterns above fit — but it does mean the visit can now lead to clearer answers, sooner and less invasively, than it could five years ago.
If you decide to raise it, a little preparation goes a long way, and the National Institute on Aging's own guidance for appointments is a good template.[4] Jot down specific examples and roughly when they started. Bring your prescription drugs, over-the-counter medicines, vitamins and supplements with you, or a list of everything you take and the dose. Note your sleep, mood, and any recent life stress. And consider bringing a family member or close friend — they can take notes and help you remember what was said.
This article is general health information, not medical advice, and it can't diagnose anyone. If you're concerned about your memory or someone else's, the right next step is a conversation with a qualified healthcare professional who can evaluate your specific situation.