Noise-induced hearing loss (NIHL) remains the most preventable form of hearing loss. Yet millions of Americans accumulate hearing damage every year from sources entirely within their control.
How Noise Damages Hearing
Loud sounds damage the microscopic hair cells in the cochlea that convert sound waves into nerve signals. Unlike many types of tissue damage, these hair cells do not regenerate. Once gone, the hearing loss they cause is permanent — occurring from a single loud impulse or from repeated exposure over time.
How Loud Is Too Loud?
The National Institute for Occupational Safety and Health (NIOSH) considers 85 decibels the threshold for potential damage with extended exposure. A lawnmower runs around 90 dB, a rock concert around 110-120 dB, and a gunshot can hit 140-165 dB. At 110 dB, damage can occur in under two minutes of unprotected exposure.
Who Is Most Affected
Adults now in their 50s, 60s, and 70s grew up and worked in an era before hearing protection was widely used. Military veterans — particularly from the Vietnam and Korean War eras — have among the highest rates of hearing loss and tinnitus of any demographic group in the country. Tinnitus is the single most common service-connected disability in the VA system.
Farmers, factory workers, construction workers, musicians, and anyone who worked in a loud environment for years before hearing protection became standard practice carry meaningful hearing risk.
If you worked in any of those environments and have not had a hearing evaluation in the past few years, the evaluation is overdue.
What Noise-Induced Loss Looks Like
Noise-induced hearing loss typically appears first in the high-frequency range, often around 4,000 Hz — a frequency that is critical for understanding speech consonants. On an audiogram, it shows up as a characteristic dip or notch at that frequency. People with this pattern often describe hearing people talk but not understanding what they are saying.
Tinnitus frequently accompanies noise-induced hearing loss, as the same hair cell damage that causes hearing loss can also generate the phantom sounds of tinnitus.
Protection Is Simple
Foam earplugs provide 20-30 dB of protection and cost almost nothing. Custom-fitted hearing protection offers superior comfort and is worth the investment for anyone regularly exposed to noise. The best protection is the kind you’ll actually wear.
Contact Revolution Hearing to ask about custom hearing protection options and to schedule a hearing evaluation if you work or play in noisy environments.
