Facts about Dementia

1. 08

   Apolipoprotein E4, a genetic variant inherited from parents, increases dementia risk up to 15 times in people carrying two copies of the gene.

   DementiaMay 14sharegeneticsbiologyrisk-factors
2. 07

   Frontotemporal dementia, which damages the brain's frontal and temporal lobes, typically strikes people in their 50s and 60s, making it the most common dementia type in adults under age 65.

   DementiaMay 14shareneurologyageanatomy
3. 06

   Approximately 50% of dementia cases involve mixed pathology, combining Alzheimer's disease with vascular damage or Lewy bodies, complicating diagnosis and treatment strategies.

   DementiaMay 14shareneurologypathologymeasurement
4. 05

   Memory loss in early dementia stages often begins with difficulty recalling recent events while long-term memories from decades past remain relatively intact due to different brain regions being affected at different rates.

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5. 04

   Lewy bodies, abnormal protein deposits found in the brains of people with Lewy body dementia, cause the third most common form of progressive dementia after Alzheimer's and vascular dementia.

   DementiaMay 14sharebiologypathologyneurological
6. 03

   Vascular dementia, caused by reduced blood flow to the brain, represents the second leading cause of dementia after Alzheimer's, accounting for 15-20% of all dementia cases.

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7. 02

   In 2023, approximately 6.7 million Americans aged 65 and older were living with Alzheimer's disease or other dementia types, with numbers expected to nearly triple by 2050.

   DementiaMay 14shareepidemiologyagingmeasurement
8. 01

   The brain protein tau tangles accumulate in Alzheimer's disease, the most common dementia type accounting for 60-80% of all dementia cases.

   DementiaMay 14shareneurologybiologymeasurement