"There a lot of interest right now in trying to prevent dementia, especially Alzheimer's, mainly because none of the treatments work very well," said Haan, who added that one important take-home message for middle-aged and younger people who want to reduce their risk of dementia is to focus on other known risk factors.
"For example, there's a relatively strong and consistent set of evidence linking hypertension with late-life dementia," she said. "So if someone is 45 or 50, and hasn't been screened for hypertension in a while, it's a good idea to do so."
More information
For more on cholesterol, diet and Alzheimer's disease, visit the Alzheimer's Association.
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