Something I noticed early on, when I worked as a Geriatric Assessment Clinic Coordinator, was how often hearing came up during appointments focused on memory loss. Patients came in because they or a loved one worried about forgetfulness, and as part of the exam, our physician asked pointed questions about hearing. Over time, otoscopy, where a physician investigates the ear canal, along with referrals to audiology, became an essential part of that assessment. It gave our physicians a clear, objective look at the ear before drawing conclusions about cognitive performance. This experience, along with recent research, helped me understand that preventing and addressing hearing issues at any age can potentially help limit memory decline.
What the Research Is Now Confirming
Recent studies have tracked participants over time to help determine whether individuals with hearing loss later developed cognitive impairment or dementia. They concluded that there is a statistically significant association between hearing loss and later cognitive decline and dementia. Individuals with assessed hearing loss were more likely to develop memory and thinking problems. They also developed them earlier than people with normal hearing. However, hearing loss does not directly cause dementia. This relationship has several layers and likely involves overlapping factors. Hearing loss can force the brain to work harder to process sound, contribute to changes in brain structure over time, and make conversations so exhausting that people engage less socially. This difference helps protect individuals from unnecessary fear while still giving families a clear reason to take hearing seriously.
Can Treating Hearing Loss Actually Protect the Brain
Research found that people who used hearing interventions, primarily hearing aids, performed better on tests of memory and executive function than those who left their hearing loss untreated. This protective effect appears strongest in people with a higher personal risk for cognitive decline. Treatment may matter most for the people who stand to lose the most ground otherwise. A hearing aid is not a guaranteed cure for cognitive decline, but addressing hearing loss is a promising, modifiable step to helping some people prevent the decline.
Changes in Access to Hearing Loss Technologies
One barrier we ran into constantly in clinic was cost and access. Patients and families would try to address these issues but then might struggle to schedule an audiologist appointment, couldn’t afford hearing aids, and waited weeks for a custom fitting. A regulatory change in the United States now allows adults with mild to moderate hearing loss to buy hearing aids directly. People can now buy hearing aids over the counter at pharmacies and online without a prescription, medical exam, or professional fitting. This option lets people who suspect their hearing has changed buy hearing aids even without a formal diagnosis. It has introduced hearing aids that cost $100 to $1500, compared with $ 4,000 to $5000 for prescription hearing aids. Even Apple AirPods Pro 2 and AirPods Pro 3 are now FDA-cleared over-the-counter hearing aids.
However, we still recommend a full hearing evaluation. Anyone with severe hearing loss, sudden hearing changes, ear pain, or hearing loss under age eighteen still needs to see a professional. For the many older adults who put off treating mild hearing changes because of hassle or cost, this is worth passing along to a parent, a spouse, or a friend.
Signs of Hearing Loss That Are Easy to Overlook
Hearing loss tends to progress over time and go unnoticed by individuals and their families until it starts to affect daily life. Here are some signs that may indicate an issue is beginning.
- Turning the television or radio volume up noticeably higher.
- Asking people to repeat themselves, or not fully answering a question.
- Struggling to follow conversations in areas where there is background noise, such as in the car, restaurants, or family gatherings.
- Not participating in group activities or social events.
- Ringing or buzzing (Tinnitus) or a feeling of fullness in the ears.
- They seem confused or unresponsive, but they may not have heard the question.
Talking to Your Doctor and What Happens Next
- Our first step is often realizing a change and reaching out to our primary care physician. During the appointment, bring specific examples of the issues you are experiencing or seeing. For example, tell the physician about having trouble following conversations at dinner, needing the television louder, or missing parts of phone calls.
- Ask for a hearing screening, since many primary care offices can do a quick baseline check that helps justify a referral.
- Whether the screening suggests hearing loss, or if you would like a full diagnostic evaluation, you can request a referral. The referral should be to an audiologist.
- Expect an audiogram, which is a full hearing test. It is performed in a sound-treated booth with headphones and tests a range of tones and volumes in each ear.
- Additional testing may be conducted if needed, including speech understanding tests or a check of eardrum movement. These tests can help identify the type and/or cause of hearing loss.
- The audiologist will review the results of the hearing test with you. They will explain the degree and pattern of hearing loss, and whether hearing aids, medical treatment, or further referral are needed.
- Discuss prescription versus over-the-counter hearing aid options if hearing aids are recommended. Severity and cost can both play a role in that decision.
- Plan for an adjustment period. Hearing aids typically require fine-tuning, and your brain may need several weeks to adjust to increased hearing.
Practical Steps for Protecting Hearing and Brain Health
Making a consistent and conscious effort to support our hearing health can make a real difference both short-term and long-term.
- Protect your hearing by using ear protection when exposed to loud noise, such as power tools, lawn equipment, or loud music.
- Stay socially engaged. Conversation is a form of brain exercise.
- Manage cardiovascular health, including blood pressure and blood sugar. Your vascular health affects both the ears and the brain.
- Once hearing loss is identified, do not wait to treat it. Earlier treatment appears to offer the largest benefit to our cognitive health.
A Note for Caregivers and Loved Ones
If you are the adult child, spouse, or friend raising the topic of hearing loss can feel delicate. Some people look at hearing aids as a sign of weakness. In my experience, when you address the issue, gently explaining that treating hearing loss helps protect relationships and independence is the best approach, and not pointing out a perceived flaw. Also, offer to go along to the appointment. Addressing hearing loss and getting a hearing evaluation, rather than assuming it’s simply part of getting older, is critical at any stage. Caregivers are often the first to notice these shifts, and that early noticing can change the trajectory of someone’s cognitive health.
Hearing Health Is Part of Healthy Aging
Watching this connection through my experience with patients helped change how I think about hearing checks. They are not separate from brain health; they are part of the same conversation. The research backs up what many clinicians see in clinic, and what I saw myself with patients, that caring for hearing is caring for the mind. You do not need to wait for a memory concern to take hearing seriously, and you do not need to feel alarmed by a hearing test either. Think of it the way you think of a blood pressure check or a cholesterol screening, a simple, proactive step that supports the whole person for years to come.