Hearing Aids Research Articles
A hearing aid is a small electronic device that you wear in or behind your ear. It makes some sounds louder so that a person with
hearing loss can listen, communicate, and participate more fully in daily activities. A hearing aid can help people hear more in both quiet and noisy situations. However, only about one out of five people who would benefit from a hearing aid actually uses one. A hearing aid has three basic parts: a microphone, amplifier, and speaker. The hearing aid receives sound through a microphone, which converts the sound waves to electrical signals and sends them to an amplifier. The amplifier increases the power of the signals and then sends them to the ear through a speaker. Nearly 15 percent of American adults (37.5 million) aged 18 and over report some trouble hearing, making this one of the most prevalent disabling conditions in the U.S. Hearing loss can be hereditary, or it can result from disease, trauma, medications, or long-term exposure to damaging noise. The condition can vary from a mild but important loss of sensitivity to a total loss of hearing. A hearing aid works by amplifying sound to allow people to hear sounds that would not be audible.
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