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Dementia Risk After 90 Revealed | Science News
New research reveals that even in your 90s and beyond, genetics, gender, and race still heavily influence dementia risk—challenging assumptions that age alone erases disparities. The LifeAfter90 study found Black and Hispanic seniors had higher dementia rates than white and Asian peers, while the protective APOE2 gene slashed risk by 60%, but APOE4’s impact varied by gender and race, especially hitting Black men hardest. Surprisingly, some people with known risk factors stayed sharp into their 90s—offering clues to lifelong cognitive resilience researchers are now chasing to reshape dementia…
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