I’ve been fitting hearing aids in the Rochester area for more than three decades, and there’s a question I get asked far more often than I used to: “Is it true that hearing loss can lead to dementia?”
It’s a fair question, and the honest answer is more nuanced than the headlines suggest. So let me walk you through what the research says, what it doesn’t say, and why none of it is a reason to panic.
It’s rarely just about missed words
Most people treat hearing loss as a minor nuisance. You nudge the TV up a few notches. You ask your spouse to repeat themselves, then start to feel bad about asking. You skip the noisy restaurant because following a conversation there wears you out. One small adjustment at a time, and after a while the workarounds just feel like life.
What I see in my office, though, is that those small changes tend to add up — and not only in your ears. Over the years, researchers have connected untreated hearing loss to a higher risk of cognitive decline, dementia, social isolation, and depression, along with a general dip in quality of life.
I want to be clear about what that does and doesn’t mean. Hearing loss doesn’t automatically cause dementia, and hearing aids are not a guarantee against Alzheimer’s. But the link is consistent enough that hearing is now part of a much larger conversation about aging well. If you’ve been putting off a hearing test, consider this one more nudge to take it seriously.
What the research actually shows
A handful of major studies have found a relationship between hearing and dementia risk, and it tends to track with severity.
The best-known work comes out of Johns Hopkins, where researchers followed adults over time and watched dementia risk climb as hearing loss worsened. Mild hearing loss was associated with roughly double the risk. Moderate loss, about triple. Severe loss, higher still.
That last figure is where the popular line — “hearing loss makes you up to five times more likely to develop dementia” — comes from. Notice that it’s tied to severe hearing loss, not every case. If you’ve got mild loss, that statistic isn’t your statistic, and it isn’t a verdict. It’s a reason to keep an eye on things rather than ignore them.
More recently, the 2024 Lancet Commission on dementia again listed hearing loss among the risk factors people can actually do something about. In plain terms: it’s modifiable. That’s good news, because most of the things we worry about with aging aren’t.
Why hearing and the brain are connected
Researchers are still sorting out exactly why these two are linked, and there probably isn’t a single tidy answer. A few explanations seem to be working together.
The first is effort. When sound stops coming through clearly, your brain has to fill in the blanks. Instead of simply hearing a conversation, you’re concentrating hard to piece each word together — and it’s worse in background noise, the kind you get at a restaurant, a family dinner, church, or a busy meeting. That constant straining has a name in the research: listening effort, or cognitive load. The concern is that all that mental work may pull resources away from things like memory and thinking.
The second is withdrawal. When conversation gets difficult, people quietly start avoiding it. They stop accepting dinner invitations. They go quiet in group settings rather than risk mishearing something. It usually happens so gradually that family members notice it before the person does. And since staying socially connected is good for the brain, that slow retreat can become its own problem.
The third is simpler: your brain depends on input from your senses. When hearing loss goes untreated, the listening centers of the brain get less to work with, and some researchers believe that reduced stimulation contributes to changes over time. It’s one of the reasons I encourage people not to wait years — the longer the brain runs on incomplete information, the harder the adjustment can be later.
So can hearing aids prevent dementia?
Here’s where I’d rather be straight with you than oversell.
Hearing aids are not a cure for dementia, and I won’t tell you they’ll keep Alzheimer’s away. Anyone who promises that is getting ahead of the science.
What the research does suggest is that treating hearing loss may help support brain health, especially for certain people. The ACHIEVE trial — a large, well-designed study — looked at whether treating hearing loss could slow cognitive decline in older adults. Across the entire group, the benefit wasn’t dramatic. But among older adults who were already at higher risk for decline, the people who got hearing treatment held onto their cognitive abilities better over a three-year stretch.
That’s a meaningful finding. It doesn’t mean hearing aids protect everyone equally, but it does suggest that treating hearing loss may matter most for people who already have other risk factors.
And honestly, the case for hearing aids was never only about dementia. They make daily conversation easier, cut down on that bone-tired feeling after a long social evening, and help you stay in the middle of family life instead of on the edge of it. Those reasons stand on their own.
Signs it might be time to get your hearing checked
Hearing loss tends to arrive slowly, which is exactly why it’s easy to miss how much you’re working around it. A few signs I’d pay attention to:
- You’re constantly asking people to repeat themselves
- It feels like everyone has started mumbling
- The TV is louder than the rest of the household would like
- Restaurants and crowded rooms are genuinely hard
- You catch yourself skipping group conversations
- You miss pieces of phone calls
- Social events leave you drained
- You rely on a spouse or family member to “translate”
If a few of those landed, it’s worth getting checked.
Why people wait so long
I understand the hesitation, because I hear the same reasons in my office. Some folks figure their hearing isn’t “bad enough yet.” Others worry hearing aids will make them look old. And plenty of people had a frustrating experience with a clunky pair years ago and assume nothing has improved.
That last one I can put to rest. Today’s hearing aids barely resemble what your father wore. Many are rechargeable, a lot of them connect straight to your phone, and the technology for separating speech from background noise has come a long way.
The bigger thing I want people to understand is this: a hearing test does not mean you’re walking out with hearing aids. It means you finally have answers — whether there’s loss, how much, and what your options are. For some patients, the right call is simply to keep an eye on it. For others, treatment changes their day-to-day life. Either way, you stop guessing.
Hearing is part of aging well
You already get your eyes checked, your blood pressure checked, your cholesterol checked. Hearing deserves a spot on that same list.
Hearing loss is common, especially as we get older — but common doesn’t mean harmless. Left alone, it can chip away at conversation, relationships, confidence, independence, and possibly long-term brain health. A hearing test is a small, simple step that gives you a baseline and lets you make informed choices. And if there is loss, addressing it sooner generally makes it easier for your brain to settle back into clear sound.
Come see us in Greece, NY
If your hearing has changed, or if someone in your family has been gently (or not so gently) suggesting you get it looked at, the first step is a straightforward hearing evaluation.
At Morabito Hearing Aid Center, we don’t rush. We take the time to explain what your results actually mean, answer whatever questions you’ve got, and talk through options that fit your life — not somebody else’s. Our office is in Greece, and we work with patients across Monroe County and the greater Rochester area.
The test itself is simple and non-invasive, and you’ll leave knowing more than you did when you walked in. If you’ve noticed a change, now’s a good time to get answers.
Contact us to schedule your hearing evaluation.