Understanding Hearing Loss

Why Hearing Health Matters

Hearing loss is common, its effects reach far beyond your ears, and treating it is one of the most impactful things you can do for your long-term health.

How Common Is Hearing Loss?

Hearing loss is far more common than most people realize. More than 50 million Americans — roughly 1 in 7 — have some degree of hearing loss, making it the third most common chronic health condition in the country, twice as prevalent as diabetes or cancer. It becomes significantly more common with age: about 1 in 4 adults in their sixties has hearing loss, and that rises to nearly 2 in 3 adults over 70.

Despite how widespread it is, hearing loss is often overlooked. On average, people wait nine years after noticing symptoms before seeking treatment — and by then, the effects have often quietly reshaped daily life.

The Hidden Cost of Untreated Hearing Loss

Hearing loss doesn't just affect your ears — it affects your whole life. Research has linked untreated hearing loss to:

Cognitive Decline and Dementia Risk

A landmark Johns Hopkins study following adults over a decade found that even mild hearing loss was associated with double the risk of developing dementia, moderate loss with triple the risk, and severe loss with five times the risk. The 2020 Lancet Commission on dementia identified midlife hearing loss as the single largest potentially modifiable risk factor for dementia — meaning it's one of the few dementia risk factors we can actually do something about. Encouragingly, a major NIH-funded clinical trial (ACHIEVE) found that treating hearing loss slowed cognitive decline by 48% over three years in adults at higher risk.

Social Isolation and Depression

Straining to hear conversations is exhausting, and many people gradually withdraw from social situations rather than keep asking others to repeat themselves. Untreated hearing loss is linked to increased rates of depression and loneliness, particularly in older adults.

Increased Fall Risk

Hearing plays a role in spatial awareness and balance. Research has connected untreated hearing loss to a higher risk of falls.

Strain on Relationships

Missed words and misunderstandings add up. Many spouses, adult children, and friends of people with untreated hearing loss describe feeling shut out of everyday conversation.

None of this is inevitable. These are risks associated with untreated hearing loss — which is exactly why early evaluation and treatment matter.

The Diabetes and Heart Health Connection

Your ears are more connected to the rest of your body than most people realize. The inner ear relies on a rich supply of tiny, delicate blood vessels — which makes it especially sensitive to the same circulation issues that affect your heart and blood sugar.

Diabetes

Research shows people with diabetes experience hearing loss more than four times as often as those without it, and the longer diabetes goes uncontrolled, the higher the risk — diabetes lasting 10+ years roughly doubles it.

Heart Health

Studies have found hearing loss in nearly 3 out of 4 older adults with heart failure, compared to about 6 in 10 of those without it. Cardiovascular risk factors like high blood pressure and high cholesterol are also more common among people with hearing loss.

This connection works both ways: hearing loss can be an early signal worth mentioning to your physician, and managing diabetes or cardiovascular health well may help protect your hearing over time. If you're managing either condition, it's worth adding a hearing evaluation to your regular care routine — not just an eye exam and a physical.

When Should You Consider a Hearing Test?

Hearing loss is often gradual, which makes it easy to miss in yourself — though friends and family frequently notice it first. Consider scheduling a hearing evaluation if you notice:

  • Frequently asking others to repeat themselves
  • Turning the TV or phone volume higher than others prefer
  • Difficulty following conversations in restaurants, groups, or other noisy settings
  • Feeling like people are "mumbling," even when others don't have that impression
  • Withdrawing from social situations you used to enjoy
  • Ringing, buzzing, or other sounds in your ears (tinnitus)
  • A family history of hearing loss

We also recommend a baseline hearing evaluation for all adults starting at age 50 (or earlier with any risk factors), then periodically after that — the same way you'd schedule regular vision or dental checkups. Catching changes early means more treatment options and an easier adjustment.

The bottom line: hearing loss is common, its effects reach far beyond your ears, and treating it is one of the most impactful things you can do for your long-term health. If any of this sounds familiar, a conversation with Dr. Sperry is a good place to start.

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Sources: National Institute on Deafness and Other Communication Disorders (NIDCD), Hearing Loss Association of America, The Lancet Commission on Dementia Prevention (2020), Johns Hopkins ACHIEVE Study