Understanding how noise affects your hearing is crucial for protecting your auditory health. Sound intensity is measured in decibels (dB), with zero representing complete silence and each 10-point increase representing a tenfold increase in sound intensity. While normal conversation levels (below 85 dB) are safe, exposure to sounds at or above 85 dB can cause permanent damage to the delicate hair cells in your inner ear that transmit sound signals to your brain. The risk increases dramatically with both intensity and duration – for every 3 dB increase above 85 dB, the safe exposure time is cut in half.
Many everyday activities can put your hearing at risk without proper protection. Common noise sources like lawnmowers, chainsaws, and jet-skis (around 110 dB) can cause damage within minutes, while emergency vehicle sirens (120+ dB) can harm your hearing in just seconds. Popular activities among young people, such as listening to music through headphones (110-115 dB) or attending live concerts (135+ dB), pose significant risks. Perhaps most dangerous are sudden, intense sounds like firearm discharge (145+ dB), which can cause immediate, irreversible hearing damage without appropriate hearing protection.