EXPLAINER
Why Can't I Hear High Frequencies Anymore?
Remember hearing the “mosquito tone” in high school? If you're in your 30s, there's a good chance you can't anymore. That's not a bug — it's how hearing ages.
The Physics: High Frequencies Die First
Inside your cochlea, thousands of tiny hair cells detect sound. The ones tuned to high frequencies sit nearest the entrance, where they take the brunt of sound energy over a lifetime — and they're the first to wear out. This natural, gradual loss is called presbycusis, and it starts earlier than most people realize.
The practical effect is a slowly shrinking upper limit. A typical teenager can hear past 17 kHz; a 40-year-old often tops out around 14–15 kHz; a 60-year-old may not hear much above 10 kHz.
Typical Hearing Limit by Age
| Age | Typical upper limit |
|---|---|
| Under 20 | 17–20 kHz |
| 30s | 15–16 kHz |
| 40s | 14–15 kHz |
| 50s | 12–13 kHz |
| 60+ | 10 kHz or lower |
These are averages — your personal limit depends on genetics and, critically, noise exposure. Loud concerts, headphones, and work environments accelerate the decline. Test your own range with our free high-frequency hearing test.
When to Worry
Gradual high-frequency loss is normal. But sudden changes, ringing (tinnitus), or loss in just one ear are not — those warrant a professional audiologist visit, not a website. An online test is a screening tool, never a diagnosis.
The single best thing you can do to protect what's left: keep headphone volume moderate and wear protection around loud noise. Once those hair cells are gone, they don't grow back.