Using hearing aids could delay the onset and progression of dementia, research suggests. Experts said further work to better understand the link between hearing loss and dementia risk “has never been more important”. The study by Danish academics comprised 573,088 people aged 50 years and older and was conducted in southern Denmark between January 2003 and December 2017. Hearing loss has been suggested as a risk factor for dementia, researchers said, with potential factors including the reallocation of brain resources to process sound, hampering other cognitive processes, as well as a decline …