{
  "id": 192675,
  "title": "Dementia after age 90: Study clarifies who may be at higher risk",
  "url": "https://urgent.news/2026/08/05/dementia-after-age-90-study-clarifies-who-may-be-at-higher-risk",
  "topic": "health",
  "section": "Health & Medicine",
  "published": "2026-08-05T20:20:04.000Z",
  "source": {
    "name": "Medical Xpress",
    "slug": "medical-xpress",
    "url": "https://medicalxpress.com/news/2026-08-dementia-age-higher.html"
  },
  "original_language": "en",
  "account": "Scientists have uncovered new insights into dementia risk after the age of 90, based on a large-scale study of older adults. The research, published in The Lancet Healthy Longevity, highlights disparities in dementia risk between genders and racial/ethnic groups. Women aged 90 and older were found to have twice the risk of men developing dementia. Black participants had a 75% greater risk compared to Asian participants, mirroring similar disparities found in younger age groups. Interestingly, the APOE gene variant APOE2 was found to significantly reduce dementia risk by 60% in older adults, while APOE4 increased risk, particularly among men and Black participants. The findings emphasize the need for targeted risk reduction strategies for various demographic groups to support better care for an aging population projected to reach over 230 million people aged 90 or older by 2100.",
  "summary": "It may seem natural to assume that people experience cognitive decline after age 90, but until recently, researchers had limited evidence about how advanced age affects the brain. This major knowledge gap will need to be addressed as people live longer. By 2100, there could be around 230 million people 90 or older on Earth. As a result, scientists, clinicians and policymakers are seeking more…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}