Whenever someone around us has poor or poor hearing, we laugh it off, saying, “Are you old that you can’t hear?” Many of us often ignore hearing loss, considering it a normal part of aging. However, new research suggests that this problem isn’t limited to the ears; it can also affect brain health. Therefore, if you notice even the slightest change in your hearing, consult your doctor immediately, as untreated hearing loss is one of the biggest modifiable risk factors for dementia.
Dr. K.K. Jindal, Director of the Neurology Department at CK Birla Hospital, Delhi, says that several large studies in recent years have indicated that hearing loss may increase the risk of dementia. The 2024 Lancet Commission report identified hearing loss after middle age as the most significant modifiable risk factor for dementia.
Research conducted by the University of Southern Denmark on over 570,000 people found that those with hearing loss had a higher risk of developing dementia than those with normal hearing. The research also revealed that as hearing loss progresses, the risk of dementia may also increase.
Doctors say there may be several reasons behind this, such as:
1. Additional stress on the brain –
When a person’s hearing ability decreases, their brain has to work harder to understand conversations. This can impact other mental processes, such as memory and thinking.
Brain Changes –
Doctors say that some research has found changes in the brains of people with hearing loss that may be linked to diseases like Alzheimer’s. However, scientists are still trying to fully understand this connection.
3. Increased Social Isolation –
People with hearing loss often withdraw from conversations and social activities. Social connection helps maintain mental health and cognitive ability. Social isolation can further increase the risk of dementia.
Doctors say that if hearing loss is treated early, the effects on the brain can be significantly reduced. A landmark study called the ACHIEVE Trial found that timely treatment of hearing problems can slow the pace of cognitive decline, especially in those at higher risk.
Furthermore, a meta-analysis published in JAMA Neurology found that people using hearing aids or cochlear implants had a comparatively lower risk of dementia and cognitive decline.
Doctors recommend regular hearing tests after the age of 40-50. If hearing loss is detected, timely treatment and options like hearing aids should be considered instead of ignoring it.