Hearing loss that occurs gradually with aging is common. The three major components of the ear are the outer ear, middle ear, and inner ear. Sound waves enter the outer ear and cause the eardrum to vibrate. As the vibrations travel through the eardrum and three tiny middle ear bones to the inner ear, they become stronger. The vibrations pass via fluid in the cochlea, a snail-shaped part of the inner ear.An damage to the inner ear. With age and exposure to loud noise, the hairs or nerve cells in the cochlea that send sound signals to the brain can degrade. Hairs with damaged or absent nerve cells do not transmit electrical signals properly. This causes hearing loss.Higher pitch sounds may appear muffled. Words
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