National Institutes of Health
- The primary NIH organization for research on Hearing Aids is the National Institute on Deafness and Other Communication Disorders
A hearing aid is a small electronic device that you wear in or behind your ear. It magnifies sound vibrations entering the ear. That makes some sounds louder. A hearing aid can help people hear more in both quiet and noisy situations.
Hearing aids help people who have hearing loss from damage to the small sensory cells in the inner ear. The damage can occur as a result of disease, aging, or injury from noise or certain medicines.
Only about one out of five people who would benefit from a hearing aid actually uses one. If you think a hearing aid could help you, visit your doctor.
NIH: National Institute on Deafness and Other Communication Disorders
References and abstracts from MEDLINE/PubMed (National Library of Medicine)