In Brief: Cholesterol levels in middle age affect dementia risk

A large study has found that even moderately elevated cholesterol levels in middle age increase the risk of developing dementia in old age.

Researchers analyzed the health outcomes of 9,844 members of the Kaiser Permanente Northern California Medical Group, who had undergone detailed health evaluations, including cholesterol testing, at ages 40 to 45. The researchers then examined participants' medical records 30 to 35 years later.

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