from https://rnid.org.uk/hearing-research/hearing-loss-and-dementia-how-are-they-linked/ https://rnid.org.uk/hearing-research/hearing-loss-and-dement...: "Ther

from https://rnid.org.uk/hearing-research/hearing-loss-and-dementia-how-are-they-linked/ https://rnid.org.uk/hearing-research/hearing-loss-and-dement...: "There is strong evidence to show that: - hearing is an essential part of brain health - mild hearing loss doubles the risk of developing dementia - moderate hearing loss leads to three times the risk - severe hearing loss increases the risk five times." also, from https://publichealth.jhu.edu/2021/hearing-loss-and-the-dementia-connection https://publichealth.jhu.edu/2021/hearing-loss-and-the-demen...: "Hearing loss is estimated to account for 8% of dementia cases. This means that hearing loss may be responsible for 800,000 of the nearly 10 million new cases of dementia diagnosed each year."