A team of researchers from Penn State University has shed light on why persistent ringing, buzzing, or hissing in the ears, known as tinnitus, frequently serves as an early indicator of impending hearing loss. This explanation was shared by the Penn State Health portal.
According to data from the U.S. Centers for Disease Control and Prevention, approximately 13% of adults in the country experience hearing difficulties. This figure rises to 27% for individuals over the age of 65. Tinnitus itself has been reported in 10% of the adult population.
The underlying process of tinnitus formation involves damage to the hair cells within the cochlea of the inner ear. These cells are responsible for converting sound waves into neural signals; as they begin to fail, the brain compensates by filling the silence with phantom sounds.
Audiologists caution that hearing damage risks emerge at sound levels exceeding 85 decibels, such as those encountered at concerts, construction sites, or when operating a lawnmower. A particularly hazardous scenario is the combination of loud machinery noise with amplified music played through headphones.
While a complete cure for tinnitus remains beyond current medical capabilities, tinnitus retraining therapy offers a method to mitigate its effects. This therapy integrates counseling with sound-based treatments.
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