Researchers at Johns Hopkins School of Medicine have found a strong association between hearing loss and dementia. There are several possible explanations, none definitive. Hearing aids do not appear to significantly lower risk, although more study is needed to see if people are using hearing aids properly.
Lisa Aliferis is the founding editor of KQED's State of Health blog. Since 2011, she's been writing stories and editing them for the site. Before taking up blogging, she toiled for many years producing health stories for television, including Dateline NBC and San Francisco's CBS affiliate, KPIX-TV. She also wrote up a handy guide to the Affordable Care Act, especially for Californians. You can follow her on Twitter: @laliferis