AARP reports that a new study links onset of dementia with hearing loss:
Researchers found that those with hearing loss at the beginning of the study were much more likely to develop dementia by the end, even after taking into account age and other risk factors. The risk of dementia only began to rise once hearing loss began to interfere with the ability to communicate — for example, in a noisy restaurant. The study also found that hearing loss increased the risk of Alzheimer's disease, but the two were not as strongly linked as hearing loss and dementia. The study was published in the medical journal Archives of Neurology.