The message, no pun intended, is loud and clear. Loss of hearing affects cognition.
Previous research has identified an association between hearing loss and cognitive dysfunction. A new study confirms this and suggests that consistently using hearing devices may lower that risk because clarity and understanding increase with hearing correction. The take-home message: hearing devices, such as hearing aids and cochlear implants, may help reduce the risk of long-term cognitive decline.
Thirty-one studies involving over 137,000 adults suggested this correlation. The investigators reported that the use of hearing devices was associated with an overall 19 percent decrease in the risk of any cognitive decline over a period ranging from two to 25 years. Specifically, the use of hearing aids was associated with a 21 percent lower likelihood of cognitive impairment, 27 percent lower odds of progression from mild cognitive issues to dementia, and 17 percent lower risk of new dementia diagnosis compared to correcting hearing. The study found that hearing device use was also associated with a 3 percent short-term improvement in cognitive test scores.
Many people avoid using hearing aids because of cosmetic reasons, ear discomfort, or hearing aids that distort sound or buzz. These hearing losses and cognition findings should encourage them to reconsider and pursue a good hearing center to find the correct device and fit. If they feel self-conscious about using hearing aids, try to find more discreet aids. Also, talking to others who wear them and the benefits of full hearing may inspire taking a second look. Like eyeglasses or vision correction, correcting hearing is essential for a full life. This study gives a more significant reason to restore hearing: cognitive abilities. If you or a loved one notice a decline in hearing, seek an evaluation and explore your hearing aid options.