Hearing loss or hearing impairment happens when there’s a problem with one or more parts of the ear. Someone who has hearing loss or impartient, may be able to hear some sounds or nothing at all. People also may use the words deaf, deafness, or hard of hearing when they’re talking about hearing loss.
Gradual hearing loss that occurs as you age (presbycusis) is common. According to the National Institutes of Health, an estimated one-third of Americans between the ages of 65 and 75 and close to one-half of those older than 75 have some degree of hearing loss. Doctors believe that heredity and chronic exposure to loud noises are the main factors that contribute to hearing loss over time. Other factors, such as earwax blockage, can prevent your ears from conducting sounds as well as they should.
There are three types of hearing loss, include conductive, sensorineural, and mixed (both conductive and sensorineural).