Most hearing loss is preventable. The single biggest thing you can do is reduce your exposure to loud noise, but preservation goes beyond that: what you eat, which medications you take, how you clean your ears, and how often you get screened all play a role. Here’s what actually works.
How Loud Noise Damages Your Ears
Understanding the mechanism helps explain why prevention matters so much. Deep inside your inner ear, thousands of tiny hair cells convert sound vibrations into electrical signals your brain reads as sound. When noise is too loud or lasts too long, these hair cells get physically bent and broken. The damage triggers a flood of unstable molecules called reactive oxygen species, which set off a chain of inflammation and cell death. Once those hair cells die, they don’t grow back. That’s why noise-induced hearing loss is permanent.
Milder exposures can cause a temporary threshold shift, where your hearing feels muffled for a few hours after a concert or a loud workday. Your hair cells recover from that, but each episode still inflicts some hidden damage to the nerve connections between the hair cells and the brain. Over years, these small injuries accumulate into noticeable, irreversible loss.
Know the Decibel Limits
The World Health Organization recommends a maximum of 80 decibels for up to 40 hours per week, which is roughly the level of a busy restaurant. The U.S. National Institute for Occupational Safety and Health sets the occupational limit at 85 decibels for an eight-hour workday. For concerts and live events, the WHO caps the recommended upper limit at 100 decibels, but only for very short durations.
For context, normal conversation sits around 60 to 70 decibels. A lawnmower runs about 90. A rock concert or a nightclub often exceeds 100. Every increase of 3 decibels doubles the sound energy hitting your ears, so the safe exposure time drops fast. At 91 decibels, you have roughly two hours before risk sets in. At 100 decibels, that window shrinks to about 15 minutes.
Use Hearing Protection That Actually Fits
Earplugs and earmuffs are rated by a number called the Noise Reduction Rating (NRR), printed on every package. The number looks straightforward, but real-world protection is always lower than the label suggests. If you only have a decibel reading measured the standard way (A-weighted), subtract 7 from the NRR, then subtract the result from the noise level. So a foam earplug rated at NRR 29 in a 97-decibel environment gives you an estimated exposure of about 75 decibels: 29 minus 7 equals 22, and 97 minus 22 equals 75.
Foam earplugs offer the highest NRR (typically 25 to 33) but muffle sound quality, which is why musicians and concertgoers often prefer high-fidelity earplugs that reduce volume more evenly across frequencies. Custom-molded earplugs from an audiologist provide a better seal and more consistent protection. The best earplug is the one you’ll actually wear, so find a type that’s comfortable enough that you don’t leave it in your pocket.
Set Volume Limits on Your Phone
Personal audio devices are one of the fastest-growing sources of hearing damage, especially among younger adults. Both major phone platforms now include built-in tools to help.
- iPhone: Go to Settings, then Sound & Haptics, then Headphone Safety. Turn on “Reduce Loud Sounds” and choose your decibel ceiling. Your phone will automatically lower audio output in real time when it exceeds that level. You can also check the Health app under Browse, then Hearing, then Headphone Audio Levels for a detailed log of your listening volume over time.
- Android: Go to Settings, then Sounds and Vibration, then Volume. Tap the three-dot menu and select “Media volume limit.” Adjust the slider to your preferred cap. You can also set a PIN to lock the limit in place, which is useful for a child’s device.
Your iPhone will also send a notification if it detects you’ve been listening too loudly for too long, and it will automatically lower the volume the next time you connect headphones. You can override it, but the nudge is worth paying attention to. A good target is keeping your listening volume at or below 80 decibels, matching the WHO’s recommendation.
Watch for Ototoxic Medications
Certain common medications can contribute to hearing loss, especially with long-term use. The most widely used ototoxic drugs are NSAIDs like ibuprofen (taken by roughly 58% of older adults in one large study), followed by acetaminophen (about 37%). Other categories include loop diuretics (a type of blood pressure medication), certain antibiotics, chemotherapy drugs, and quinine. Aspirin’s effect on hearing remains debated in the research, with studies showing mixed results.
This doesn’t mean you should stop taking prescribed medications. But if you’re using over-the-counter pain relievers regularly, it’s worth knowing that the habit carries a hearing cost. Talk with your pharmacist or doctor about alternatives if you rely on these drugs frequently, particularly if you already have some hearing loss or work in a noisy environment.
Eat for Your Ears
A large study of women tracked over time found that higher dietary intake of certain nutrients was linked to meaningfully lower risk of hearing loss. Beta-carotene (found in carrots, sweet potatoes, and leafy greens) was associated with a 12% lower risk when comparing the highest intake group to the lowest. Beta-cryptoxanthin, a pigment found in oranges, tangerines, and red peppers, showed a 10% lower risk. Folate, found in beans, lentils, and dark leafy greens, also showed a protective trend, while very low folate intake (under 200 micrograms per day) was associated with a 19% higher risk of hearing loss.
One unexpected finding: very high vitamin C intake, particularly from supplements at 1,000 milligrams per day or more, was actually associated with a 22% higher risk. Vitamin E showed no significant relationship either way. The takeaway isn’t to megadose on supplements. It’s that a diet rich in colorful fruits and vegetables provides the antioxidant compounds that help protect those vulnerable hair cells in your inner ear.
Leave Your Earwax Alone (Mostly)
Earwax is protective. It traps dust and debris, has antibacterial properties, and naturally migrates out of the ear canal on its own. Clinical guidelines are clear: if your ears aren’t symptomatic and a doctor can see your eardrum, there’s no reason to clean them out. Cotton swabs tend to push wax deeper, compacting it against the eardrum and potentially causing the very blockage you’re trying to prevent.
If you do develop a noticeable blockage (muffled hearing, a feeling of fullness, or ringing), the recommended options are softening drops (even plain water or saline can work), gentle irrigation, or manual removal by a clinician. Ear candling, which involves placing a hollow lit candle in the ear canal, is specifically recommended against in clinical practice guidelines. It doesn’t remove wax and can cause burns or perforate the eardrum.
Recognize the Early Warning Signs
Hearing loss usually creeps in so gradually that you don’t notice until it’s significant. The earliest signs tend to be subtle: difficulty following conversations in noisy restaurants, needing to turn the TV up a few notches more than you used to, or asking people to repeat themselves more often. High-frequency sounds, like children’s voices or birdsong, typically fade first.
Tinnitus, a persistent ringing, buzzing, or hissing in one or both ears, is another early red flag. It often accompanies noise-induced damage and can appear before you notice any measurable hearing loss. A sudden feeling of ear fullness, dizziness, or a loud “pop” followed by muffled hearing in one ear is more urgent. Sudden sensorineural hearing loss, defined as losing at least 30 decibels across three connected frequencies within 72 hours, is a medical emergency that responds best to treatment within the first two weeks.
Get Screened on a Schedule
The American Speech-Language-Hearing Association recommends a baseline hearing test by an audiologist, followed by screening once per decade through your 40s and every three years after age 50. If you work around loud equipment, attend concerts regularly, or have other risk factors, more frequent testing makes sense. A hearing test takes about 30 minutes and establishes a baseline that makes future changes easier to detect. Many people don’t realize how much hearing they’ve lost until they see the audiogram, because the brain is remarkably good at compensating for gradual decline.