Research has shown that the risk of dementia doubles for people with untreated mild hearing loss; for those who suffer from a moderate hearing loss, the risk of dementia triples, and if you have severe untreated hearing loss, you are five times more likely to develop the condition.
According to estimations, hearing loss accounts for 8% of dementia cases, meaning that it may be responsible for 800,000 of the almost 10 million new cases of dementia diagnosed each year.