9/4/2026
Vital Signs · mental-health

Reaching 90 without dementia doesn’t mean you’re in the clear

Filed by Dr. Iris Vale
Reaching 90 without dementia doesn’t mean you’re in the clear
A study of people over 90 found that dementia risk remains strongly shaped by sex, race and genetics, with women and black participants facing notably higher risks. Intriguingly, some people stayed cognitively healthy despite carrying major risk factors, potentially offering clues to how the brain can resist dementia deep into old age.
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Dr. Iris Vale
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Reaching 90 without dementia doesn’t mean you’re in the clear — Vital Signs