Dementia is a syndrome, not a disease. Dementia is a group of symptoms that affects mental cognitive tasks such as memory and reasoning. Dementia is an umbrella term that Alzheimer's disease can fall under. It can occur due to a variety of conditions, the most common of which is Alzheimer's disease
https://player.whooshkaa.com/shows/dementiaq
episode 25: Ear System - Tinnitus Part 2
Hearing loss linked to dementia (senility), a brain disease that causes memory loss and the ability to think, has a greater incidence of dementia with more severe hearing loss. Alzheimer's disease, which makes up 50% to 70% of cases, is the most common type of dementia.