The above linked article tells about a link between dementia and hearing loss. It also covers hearing loss and learning.
One of the studies followed people with hearing loss and more than 50% of them eventually had dementia. Was there another study following that age group to see how it compared to those who didn’t have hearing loss? If so, I missed that info.
It gets to the point where it seems that hearing is important for learning, too. It made me wonder about deaf children who lip-read or learn ASL. Do they learn more slowly? Is their IQ any lower than hearing children? I suspect not, but is it just a different way of learning? I’d like to see a study on that.
Also, it brings up the debate of audiobooks vs paper books. Are those who are listening to their books learning less than if they read it on paper or more? What about dyslexic people who learn by listening more than by reading?
These last two questions are all from my head. No scientific theory behind them. Just my ramblings, but I am curious.