Tinnitus, Hearing Loss, and Dementia: Separating the Science from the Scare
By Dr. Layne Garrett, Au.D., FAAA, ABAC, CH-TM, CDP (About | YouTube | Podcast | LinkedIn)
Date Published: April 9, 2026 at 3:00 PM MDT
You’ve seen the headline: “Tinnitus increases dementia risk by 68%.” The study is real, the figure is real, and the fear it triggers is understandable. But the conclusion most people draw from it — that tinnitus is sending them toward dementia — is not what the research shows, and after two decades treating tinnitus here in Utah, I can tell you the full story is both more complicated and more encouraging than any headline suggests.
Quick Answer: Tinnitus itself is not proven to directly cause dementia. The stronger connection in the research is between hearing loss and dementia — and more than 90% of people with chronic tinnitus also have hearing loss, often without realizing it. The 2024 Lancet Commission on Dementia identified hearing loss as the largest modifiable dementia risk factor in midlife. The encouraging part: treating hearing loss with hearing aids appears to slow cognitive decline in people at elevated risk. That makes a proper hearing evaluation — not fear — your most useful next step.
I also cover this topic in a video — watch it here if that’s more your style.
Table of Contents
- What the Headlines Are Actually Reporting
- The Missing Piece: Hearing Loss
- What the Lancet Commission Actually Found
- The ACHIEVE Study: What Treating Hearing Loss Can Do
- What This Means for Tinnitus Treatment
- What to Do If You Have Tinnitus in Utah
- FAQ
What the Headlines Are Actually Reporting
The research being cited online is real — and worth understanding clearly.
A 2021 study published in Scientific Reports analyzed data from Taiwan’s National Health Insurance Research Database. It compared 1,308 patients diagnosed with early-onset dementia (before age 65) against 1,308 matched controls. Patients with early-onset dementia were about 68% more likely to have had prior tinnitus.
A 2024 follow-up study from the same database looked at over 15,000 people. It found a statistically significant association between tinnitus and dementia in the 50–65 age range. In adults over 65, the association was not statistically significant.
Those findings are real. They showed a correlation. That’s important. But correlation is not causation — and in this case, there’s a critical third factor that most headlines skip entirely.
The patients I see most often are not afraid of the ringing. They’re afraid of what they read about it. Understanding why the research shows what it does — and what it doesn’t — changes that fear into something actionable.
The Missing Piece: Hearing Loss
Here’s what most articles about tinnitus and dementia leave out.
More than 90% of people with chronic tinnitus also have some degree of hearing loss. Sometimes that loss is obvious. Often it’s subtle — showing up only in the extended high frequencies that standard hearing tests don’t measure, or as auditory nerve damage that doesn’t appear on a basic audiogram at all.
When researchers look more carefully at whether tinnitus itself drives dementia risk — separate from hearing loss — the picture gets complicated. A 2024 UK Biobank analysis using preprint data found that when hearing loss and age were properly controlled for, tinnitus alone was not independently associated with increased dementia risk. A more recently published UK Biobank study in Age and Ageing found that overall tinnitus was linked to a modest 10% increased dementia risk — but noted that noise exposure and severity were additional factors.
What the research consistently does show — with rock-solid evidence — is the connection between hearing loss and dementia.
And that’s where things get actionable. Because hearing loss is something you can address. Tinnitus with untreated hearing loss underneath it is, in many cases, both treatable and modifiable as a cognitive risk factor.
This is precisely why I encourage anyone with persistent tinnitus to start with a proper hearing evaluation. Understanding the relationship between hearing loss and brain health is the first step — not toward a dementia diagnosis, but toward understanding what’s actually driving the symptoms and what can be done about it.
What the Lancet Commission Actually Found
The most authoritative review of dementia research in the world is the Lancet Commission on Dementia Prevention, Intervention, and Care. Their 2024 update, published in July of that year, is where the strongest data lives.
The Commission identified 14 modifiable risk factors that together account for roughly 45% of global dementia cases. Hearing loss was identified as the largest single modifiable risk factor in midlife — accounting for approximately 7% of all dementia cases globally. That puts it ahead of smoking, physical inactivity, and social isolation.
Here’s the number that matters most: the 2024 Commission concluded that the evidence treating hearing loss reduces dementia risk is now stronger than in their previous report. They wrote specifically that hearing aids appear particularly effective for people with hearing loss who have additional risk factors for dementia.
Let me be direct about what this means clinically. If you have tinnitus — and most people with tinnitus also have hearing loss — you may be sitting on an unaddressed risk factor that is both real and modifiable. That’s not a reason to panic. It’s a reason to act.
This connection between hearing health and brain health is the foundation of how we approach tinnitus care at Timpanogos Hearing & Tinnitus. We’ve seen it in patient after patient over 20 years: address the hearing, and the trajectory often changes — for both the tinnitus and the brain health concerns underneath it.
The ACHIEVE Study: What Treating Hearing Loss Can Do
The landmark clinical trial on this question is the ACHIEVE study — the Aging and Cognitive Health Evaluation in Elders — published in The Lancet in July 2023.
ACHIEVE was the largest randomized controlled trial of hearing aids for long-term cognitive decline in older adults. It included 977 participants between the ages of 70 and 84, all with untreated hearing loss and no significant cognitive impairment at the start.
The 48% figure gets cited a lot — often without the context that changes what it means.
In the total study population, the hearing intervention did not significantly slow cognitive decline over three years. But the results differed by risk level. Among participants who already had elevated risk factors for cognitive decline — things like older age, lower baseline cognition, diabetes, and hypertension — treating hearing loss slowed cognitive decline by 48% over three years compared to the control group.
That’s a meaningful result. Not a guarantee. Not a cure. But a real signal that for people carrying multiple risk factors, getting your hearing treated may protect your brain in ways that matter.
The researchers believe this works through several pathways. Hearing aids reduce cognitive load — the brain no longer has to strain to decode garbled sound. They restore auditory stimulation that the brain needs to maintain neural connections. And they keep people engaged socially, which itself is protective against cognitive decline.
The pattern I see most often in my clinic: patients who wait 5–7 years to address their hearing loss come in dealing with more than just hearing difficulty. Their cognitive fatigue is real. Their social withdrawal is real. Treating hearing loss earlier — even mild loss — gives the brain more to work with.
What This Means for Tinnitus Treatment
Here’s where things come together for most patients with both tinnitus and hearing concerns.
The AAO-HNS Clinical Practice Guidelines for Tinnitus specifically recommend that clinicians offer a hearing aid evaluation for patients with hearing loss and persistent, bothersome tinnitus. When the major medical organization for ear, nose, and throat doctors makes that recommendation, the evidence behind it is solid.
About 75% of patients with both hearing loss and tinnitus get meaningful improvement in their tinnitus when hearing aids are properly fitted. That “properly fitted” part matters — it means verified with real ear measurement, not just turned up and sent home.
But hearing aids alone are not always enough. This is where I want to be completely honest with you, because a lot of patients get hearing aids somewhere and still struggle. The device was part of the answer. The rest of the treatment program wasn’t there.
The AAO-HNS guidelines also specifically recommend cognitive behavioral therapy — CBT — for persistent, bothersome tinnitus. Not medication. Not supplements. CBT.
Here’s what comprehensive tinnitus care actually includes:
Properly fitted hearing aids are the foundation. But alongside that, we provide education about how tinnitus works neurologically — because understanding the mechanism removes a lot of the fear that drives distress. We incorporate CBT-based approaches to address the thought patterns and emotional responses that make tinnitus feel unbearable. For patients with significant distress who haven’t responded to other approaches, we offer Lenire — the FDA-approved bimodal neuromodulation therapy that combines tongue stimulation with customized sound to help the brain retrain its response to tinnitus. We also look at sleep, stress, and lifestyle factors that influence tinnitus severity.
One more reason treating tinnitus matters for brain health: chronic tinnitus distress creates sustained cognitive load. Your brain is constantly monitoring an unwanted signal. That attentional demand uses resources your brain could otherwise direct toward memory, focus, and decision-making. Reducing tinnitus distress isn’t just about quality of life — it frees up cognitive capacity. For patients thinking about long-term brain health, that matters.
What to Do If You Have Tinnitus in Utah
So what does this all mean if you’re sitting in Provo or Lehi or Springville reading this with a ringing in your ears?
First: don’t panic. The ringing itself is not a dementia sentence. But use it as the signal it may be — a reason to understand what’s happening with your hearing, and to address it if needed.
Second: get a real hearing evaluation. Not a basic screening at a pharmacy or a big-box store. A comprehensive audiological evaluation that looks at high-frequency hearing, auditory nerve function, and what your tinnitus profile actually looks like. Standard audiograms may miss certain types of auditory nerve damage. If your provider only tests conversational frequencies, you don’t have a full picture.
Third: if you have hearing loss — even mild loss — take it seriously. The ACHIEVE data suggests that for people with risk factors, treating hearing loss sooner rather than later is where the cognitive benefit lies. Waiting until your hearing loss is severe means years of unnecessary cognitive load.
Fourth: if your tinnitus is bothersome, don’t accept “learn to live with it” as an answer. The AAO-HNS guidelines are clear: persistent, bothersome tinnitus warrants treatment. Not because it directly causes dementia — but because it causes real harm to your quality of life, and that harm is now treatable.
Getting Comprehensive Tinnitus and Hearing Care in Utah
If you’re in Northern Utah County — whether you’re in American Fork, Lehi, Highland, or Pleasant Grove — or in the south valley near Spanish Fork, Springville, or Mapleton — this level of care is available locally. We also regularly see patients traveling from Salt Lake City, Sandy, Draper, and South Jordan — the full Wasatch Front is our practice area.
Timpanogos Hearing & Tinnitus specializes in comprehensive tinnitus treatment. Our providers hold the Certificate Holder in Tinnitus Management (CH-TM) designation from the American Board of Audiology — one of the highest specialty credentials in the field. We are one of only 14 Lenire Preferred Providers in the United States.
Over 20 years, the pattern I see most often is this: patients who get a proper evaluation, address their hearing loss, and engage in a full treatment program — not just hearing aids — have dramatically better outcomes for both tinnitus and long-term brain health.
When You’re Ready to Explore Your Options
Schedule your free consultation — we’ll evaluate your hearing, review your tinnitus profile, and discuss what makes sense for your specific situation. Most patients tell us the clarity they get from a proper evaluation is worth the appointment alone.
Or call us at (385) 332-4325 — speak with our team directly.
Want to do more research first? Visit our Learning Center for detailed information on tinnitus treatment, hearing loss, and what the evidence actually supports.
FAQ
Does tinnitus directly cause dementia?
Tinnitus is not proven to directly cause dementia. Research has found an association between tinnitus and cognitive decline — particularly in people under 65 — but association is not causation. The more consistent finding in the literature is that hearing loss, which accompanies tinnitus in over 90% of cases, is a major modifiable dementia risk factor. Researchers looking at tinnitus separately from hearing loss find the independent effect is much weaker and less consistent across studies.
If I treat my tinnitus, does that reduce my dementia risk?
Treating the underlying hearing loss that accompanies most tinnitus appears to lower dementia risk — particularly in people who already have elevated risk factors. The ACHIEVE study found that hearing intervention slowed cognitive decline by 48% in older adults with multiple risk factors. Beyond that, reducing tinnitus distress lowers chronic cognitive load, which may offer additional brain health benefits. There’s no single treatment that guarantees protection, but addressing untreated hearing loss is the most evidence-backed step you can take.
My hearing test came back normal. Does that mean I don’t have hearing loss contributing to my tinnitus?
Not necessarily. Standard audiograms test a limited range of frequencies and may not detect auditory nerve damage — sometimes called hidden hearing loss. Many patients with tinnitus and “normal” hearing tests have measurable damage when tested with extended high-frequency audiometry or other advanced tools. If you have persistent tinnitus, a comprehensive evaluation that goes beyond a basic audiogram is worth pursuing.
How do I know if my tinnitus is bothersome enough to treat?
If your tinnitus affects your sleep, your concentration, your mood, or your enjoyment of daily activities — it is bothersome enough to treat. The AAO-HNS clinical practice guidelines define bothersome tinnitus as tinnitus that affects quality of life or functional health status, and they specifically recommend against telling patients to simply live with it. You should not have to accept ongoing distress as normal.
What makes a good tinnitus provider?
Look for a provider with specialized tinnitus training — specifically the CH-TM credential from the American Board of Audiology. Ask whether they offer real ear measurement verification for hearing aids, CBT-based counseling, and access to FDA-approved treatments like Lenire for cases that haven’t responded to other approaches. If a clinic only offers hearing aids, that’s often what they’ll recommend — even when your situation calls for more.
About the Author
Dr. Layne Garrett, Au.D., FAAA, ABAC, CH-TM, CDP is a board-certified audiologist and founder of Timpanogos Hearing & Tinnitus, with clinic locations in American Fork and Spanish Fork, Utah. Over 20 years, he has specialized in tinnitus management, helping thousands of patients. Timpanogos Hearing & Tinnitus has been recognized as Best of State in Auditory Services 14 times and operates as one of only 14 Lenire Preferred Providers in the United States. His practice emphasizes patient education over sales-driven care.
Links: About | YouTube | Podcast | LinkedIn
Reviewed/Edited by: Dr. Layne Garrett, Au.D., FAAA, ABAC, CH-TM, CDP Date: April 9, 2026
