Memory is not a recording device, and it never was. Forgetting is a feature of a functioning brain — it prunes, prioritises and discards constantly, and the sense that it used to be better is partly true and partly a comparison against a version of yourself who had fewer things to remember.
So "do I forget things?" is not a useful question. Everybody does. The useful questions are narrower.
The four questions that actually matter
1. What kind of forgetting?
Some kinds are ordinary regardless of quantity. Others are more informative.
Usually unremarkable: misplacing keys and phones. Forgetting names, especially of people met once. Losing a word. Forgetting why you came into a room. Forgetting an appointment not written down. Blanking under pressure. Forgetting what you read while tired.
More worth raising: forgetting a whole conversation, not a detail of it. Asking the same question repeatedly within a short period without recalling having asked. Forgetting significant recent events — a visit, an outing, news. Not recognising that something has been forgotten when reminded of it.
The distinction people find most useful: forgetting where you put something and forgetting that you had it at all are different. So are forgetting a detail of a conversation and having no memory of the conversation.
2. Is it worse than it was?
Compared with a year ago. Two years. Five. The trajectory matters far more than the current level — many people have always been forgetful, and a lifelong tendency is a different proposition from a change.
Progression over months, clearly, in one direction, is the feature that most changes the clinical picture.
3. Has anyone else noticed?
Weighted heavily, and for good reason: self-report on memory is unreliable in both directions. Anxious people overestimate their impairment. People with significant impairment often underestimate it, or do not notice at all, which is itself a meaningful sign.
"My partner has started mentioning it" carries more weight than "I feel like it is getting worse". Both are worth saying; they are different pieces of evidence.
4. Is it costing you anything?
Not annoyance — consequences. Missed appointments you had written down. Errors at work. Bills unpaid because you forgot, repeatedly. Having stopped doing something because you cannot follow it. Somebody else taking over something you used to manage.
The thing most often mistaken for memory
A large share of people who present with memory complaints do not have a memory problem. They have an attention problem, and the distinction matters because the treatments differ entirely.
If it never went in, it is not memory. Walking through a door thinking about something else, putting keys down, and having no idea where — nothing was encoded. There is nothing to recall. That is attention.
If it went in and will not come out, it is retrieval. You knew the name yesterday. It is in there. It arrives twenty minutes later. That is retrieval, and it is sensitive to sleep, stress and fatigue.
If it went in and is gone, that is memory. You had the conversation, attended to it, and it is not there — and being reminded does not bring it back.
Most everyday complaints are the first category. Which is why the follow-up question is: were you paying attention when it happened? Honestly answered, it resolves a great deal.
The things that make memory worse and are not memory problems
All common, all worth checking before concluding anything:
- Insufficient sleep. Memory consolidation happens during sleep. This is not a metaphor.
- Doing several things at once. Divided attention prevents encoding. If you are on your phone during a conversation, you will not remember the conversation.
- Anxiety and depression. Both impair encoding and retrieval directly.
- Medications, particularly sedating and anticholinergic ones.
- Alcohol.
- Thyroid, B12, iron. Blood tests.
- Untreated hearing loss, which is genuinely important and often overlooked: you cannot remember what you did not clearly hear, and the effort of listening consumes the capacity that encoding needs.
- Stress and overload, which reduce memory performance measurably.
When not to wait
Get assessed promptly for: clear progression over months; repeating the same question without recalling it; getting lost in familiar places; difficulty with tasks long familiar; personality or behaviour change noticed by others; forgetting significant recent events; or memory change under fifty that is clearly progressing.
Sudden confusion over hours to days is urgent, not an appointment.
What to do if you are unsure
Two things, and the second is the one people skip.
Write down the instances for two weeks. Actual instances, dated, with what kind of forgetting each one was. This is worth more than any impression, because impressions of memory are contaminated by the thing being assessed and by how worried you are.
Ask someone who sees you daily, directly: have you noticed my memory being worse? Be honest. Their answer is one of the single most informative pieces of evidence available, and it is free.
If the notes show ordinary misplacing and nobody around you has noticed anything, that is meaningfully reassuring — and it is also worth looking at your sleep, your medication list and your stress, because something on that list is probably contributing.
If the notes show forgotten conversations, or the person you asked has been waiting to be asked, book the appointment. Most causes are treatable, and the ones that are not are still better managed early than late.