Determining The Threshold: Understanding When Sound Crosses The Line

Exposure to noise-induced hearing loss (NIHL) can affect individuals of any age. The U.S. Centers for Disease Control and Prevention (CDC) reports that approximately 40 million adults in the United States, ranging from 20 to 69 years old, have NIHL. Surprisingly, a quarter of U.S. adults who perceive their hearing as good to excellent already have hearing damage in one or both ears.

It's not just adults who are at risk; children are also vulnerable to NIHL. The NIDCD's public education campaign, "It's a Noisy Planet. Protect Their Hearing.®," aims to raise awareness among parents of preteens about the causes and prevention of NIHL. The campaign places significant emphasis on helping children develop healthy hearing habits.

You may be surprised to learn that certain everyday situations can pose hearing hazards. If you find yourself having to shout to be heard over the noise in your environment, it indicates that your unprotected hearing is at risk. Additionally, listening to music or other sounds at high volumes through headphones or earbuds can be hazardous. In general, the faster NIHL can develop, the louder the sound. Sound is measured in decibels, and sounds at or below 70 A-weighted decibels (dBA) are generally considered safe. However, prolonged or repeated exposure to sounds at or above 85 dBA can lead to hearing loss.

To protect your hearing, it is important to take consistent and proper measures, such as wearing ear protection like earmuffs or earplugs, especially when you anticipate exposure to loud noises. It is advisable to carry hearing protectors with you at all times, as sometimes the noise level may be higher than anticipated. Whenever possible, lower the volume of the sound source. If you find yourself unable to avoid loud sounds, try to physically distance yourself from the noise source to minimize the impact on your hearing.