Scientists have for the first time linked high cholesterol and vision loss to the development of dementia, including them among 14 critical risk factors that if reduced can prevent or delay nearly half of cases.
High cholesterol in the over-40s and hearing impairments were most commonly associated with people developing dementia globally, according to new research by The Lancet Commission on dementia prevention, intervention and care.
Lower education levels in early life and social isolation in later life also played an important role, the report said.
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