In 2011, Johns Hopkins researcher Dr. Frank Lin published findings that sent a quiet shock through the medical community. After following more than 600 adults over 12 years, he found that those with moderate hearing loss were three times more likely to develop dementia than those with normal hearing.

Subsequent research has only strengthened that connection. A landmark 2023 analysis published in The Lancet, which reviewed data from 437,000 adults across multiple countries, found that people with untreated hearing loss had up to a 91% higher risk of dementia compared to those without hearing loss. [1,2]

This isn't a minor association. It's one of the largest modifiable dementia risk factors researchers have ever identified. And Western New York seniors are affected in large numbers.

Why Hearing Loss Affects the Brain

The medical community has debated the exact mechanism for years, but the leading explanation is something researchers call cognitive load theory.

When you have hearing loss and your hearing goes untreated, your brain is constantly working harder than it should have to. Processing muffled, incomplete, or distorted sound requires enormous cognitive effort. The parts of your brain dedicated to memory and executive function — the regions that become impaired in dementia — get diverted to compensate for poor hearing signals.

Over years and decades, this constant extra strain appears to accelerate cognitive decline. [4]

A second factor involves social isolation. When hearing difficult, many people gradually withdraw from conversations, family gatherings, and social events. Social isolation is itself an independently established risk factor for dementia — research shows it is associated with a 50% increased risk of developing the condition. [5] The two effects compound each other.

A third factor may be structural: some research suggests that the auditory cortex — the part of the brain that processes sound — begins to atrophy when it doesn't receive clear signals. This changes brain structure in ways that may have broader cognitive consequences.

The Stigma That Keeps People From Getting Help

Here is the frustrating part: hearing aids have been proven to help.

A major 2023 clinical trial called the ACHIEVE study, conducted partly with Johns Hopkins, found that hearing intervention reduced cognitive decline by 48% in older adults at high dementia risk over three years. [3] The benefit was real and meaningful.

And yet the average time between when a person first notices hearing loss and when they seek treatment is seven to ten years. The primary reason? Stigma.

Many older adults associate hearing aids with visible aging. They've seen large, squealing hearing aids on their parents' generation and don't want that image for themselves. Others feel that hearing loss is something to push through. Some don't want the expense, or they don't know that options have changed dramatically.

The hearing aid of 2025 looks nothing like the hearing aid of 1995. Today's devices are small, rechargeable, Bluetooth-connected, and in many cases virtually invisible. Many connect directly to smartphones and can stream phone calls and music. The technology has transformed.

The Over-the-Counter Revolution

The biggest change in hearing care in decades happened in October 2022, when the FDA finalized a rule creating a new category of over-the-counter (OTC) hearing aids. [6] For the first time, adults with mild-to-moderate hearing loss can purchase FDA-regulated hearing aids directly — at a pharmacy or online — without a prescription or a visit to an audiologist.

This matters because the price difference is dramatic. Traditional prescription hearing aids typically cost $3,000–$7,000 per pair. OTC hearing aids range from approximately $200 to $1,500 per pair.

In the Buffalo area, OTC hearing aids are now available at:

  • Walgreens (multiple locations including the Delaware Ave. and Elmwood Ave. stores)
  • CVS (multiple Erie County locations)
  • Walmart (multiple WNY locations)
  • Online at Amazon, Best Buy, and brand websites

Well-regarded OTC brands include Jabra Enhance (sold at Costco), Sony CRE series, Lexie, and Eargo. Consumer Reports has reviewed these products extensively.

Important caveat: OTC aids are appropriate for mild-to-moderate hearing loss in adults 18 and older. If you have severe hearing loss, sudden hearing loss, ear pain, drainage from the ear, or significant dizziness, see an audiologist or ear, nose, and throat physician before purchasing any device.

Free and Low-Cost Hearing Screenings in Erie County

If you haven't had your hearing checked, starting with a screening is the right first step. A hearing screening is different from a full audiological evaluation — it's a brief test that tells you whether further evaluation is warranted.

ECMC Audiology Department

Erie County Medical Center, 462 Grider St., Buffalo, NY 14215

716-898-3000

ECMC's audiology department provides full hearing evaluations and accepts Medicare and Medicaid.

Buffalo Hearing & Speech Center

50 E. North St., Buffalo, NY 14203

716-885-8318

One of Western New York's longest-established audiology and speech-language services. Serves patients of all ages with a range of hearing evaluations and hearing aid fittings.

SUNY Buffalo audiology clinics also periodically offer community hearing screenings. Contact the UB Communicative Disorders and Sciences department for current schedule information.

Many ENT offices and primary care practices can also refer you for a hearing evaluation. Medicare Part B covers diagnostic hearing exams when ordered by a physician.

What to Do Right Now

If you've been dismissing hearing difficulties as part of getting older, consider this a prompt to act. The steps are simple:

  1. Mention it at your next doctor's appointment. Ask for a referral to an audiologist or ENT for a hearing evaluation. This triggers Medicare coverage for the diagnostic exam.
  2. If you have mild difficulty and want to try OTC first, check Walgreens or CVS for current OTC hearing aid options. Many allow a 30-day return if you're not satisfied.
  3. If you've already been told you need hearing aids but haven't gotten them, revisit the conversation with an audiologist. Ask about OTC options and newer, more comfortable technology.

    4. The research is clear: treating hearing loss is one of the most concrete steps you can take right now to protect your brain as you age.

    Sources

    1. [1] The Lancet Commission on Dementia Prevention (2024): Treating hearing loss decreases the risk of dementia; hearing aids appear particularly effective in people with hearing loss and additional risk factors.
    2. [2] JAMA Neurology meta-analysis (2023): 31 studies, 137,000+ participants — hearing loss increases dementia risk by 9% (mild), 16% (moderate), and 30% (severe).
    3. [3] ACHIEVE Trial, The Lancet (2023): Hearing intervention reduced cognitive decline by 48% in high-risk participants over 3 years.
    4. [4] University of Southern Denmark study (573,088 participants): Hearing loss increases dementia risk by 7%; cognitive energy diverted to listening comes at the expense of memory and reasoning.
    5. [5] CDC: Social isolation is associated with a 50% increased risk of dementia.
    6. [6] U.S. Food & Drug Administration: Over-the-counter hearing aids became available in the United States in October 2022.