Some of you may have heard friends or relatives talk about realistic expectations regarding what hearing aids can do. Realistic expectations also apply to a hearing aid’s lifetime. Hearing aids are small, intricate electronic devices, with hundreds of parts and circuits. They are worn on the body and are exposed to ear wax (cerumen), body oils, and perspiration. They are subject to a wide range of temperature and humidity levels. In fact, laboratory tests have indicated that microphones and receivers are subject to greater stress in hearing aids than in satellites and the space shuttle! As a result, all hearing aids have a limited lifetime and require regular cleaning and maintenance. If you feel your hearing aids need a “tune-up”, please call the office and schedule a hearing test.