![]() The last possible mechanism is that if you can’t hear very well, you might be less likely to go out and participate in social activities. “That’s why people always say it sounds like people are mumbling at me,” he added.Īnother is that hearing loss may have structural impacts on the brain’s integrity, and parts may be atrophying or shrinking faster - and that is not good for the brain, Lin said. ![]() One is that if the cochlea wears out over time, the inner ear may be sending garbled signals to the brain, which has to work harder and redistribute brain power to understand what it’s hearing, Lin said. Not enough people wear hearing aids, experts say. Hearing aids could be a cost-effective way to reduce the impact of hearing loss on dementia, a new study says. There are three mechanisms researchers think may be at play, he said. But why might that increase dementia risk? Why hearing loss may increase dementia riskĮveryone’s hearing declines with age, Lin said. “We can’t slow down something that’s already really not changing,” Lin said.īut the population more at risk saw rates of cognitive decline at levels almost three times higher than their counterparts, and the results call into question whether governments and individuals should prioritize hearing health to reduce dementia risk, he added. The smaller change over the total population could be because if the healthy, less at-risk participants weren’t seeing cognitive decline much at all, then the hearing aids couldn’t do much to slow it down, he added. Thomas Holland, physician scientist at the Rush Institute for Health Aging. “That was very impressive to see that in the unhealthy individuals they were able to slow the rate of cognitive decline by 48%,” said Dr. But when researchers looked at just the older group that was at higher risk, they found a significant reduction in cognitive decline, Lin said. In the total group, hearing aids did not appear to reduce cognitive decline, the study said. Researchers followed up with the groups every six months for three years, and at the end, they were given a score from a comprehensive neurocognitive test. ![]() Participants were randomly assigned to either a control group that received counselling in chronic disease prevention or an intervention group that received treatment from an audiologist and hearing aids, according to the study. The researchers looked at more than 3,000 people from two populations: healthy community volunteers and older adults from the Atherosclerosis Risk in Communities (ARIC) study, a longstanding observational study of cardiovascular health. ![]() Get your eyes checked to keep your brain healthy, study says Thomas Northcut/Digital Vision/Getty Images/FILE Mature man looking through Ophthalmic Instrument called a phoroptor. ![]()
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