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The estimate of how many people will develop dementia in their lifetimes is now higher than ever—42% for both men and women, according to a new study—with about 1 in 9 Americans 65 and older ...
Overall, the lifetime dementia risk after age 55 was 35% for men and 48% for women. About a million Americans […]
1. Alzheimer's disease: know the symptoms. Alzheimer's disease "is an illness of the brain that occurs primarily in older people where brain cells start to die," Devi says.
The symptoms of this dementia depend on where in the brain the strokes occurred and whether the blood vessels affected were large or small. [14] Repeated injury can cause progressive dementia over time, while a single injury located in an area critical for cognition such as the hippocampus, or thalamus, can lead to sudden cognitive decline. [76]
It is the cause of 60–70% of cases of dementia. [2] [15] The most common early symptom is difficulty in remembering recent events. [1] As the disease advances, symptoms can include problems with language, disorientation (including easily getting lost), mood swings, loss of motivation, self-neglect, and behavioral issues. [2]
Signs and symptoms are classified into three groups based on the affected functions of the frontal and temporal lobes: [8] These are behavioural variant frontotemporal dementia, semantic dementia, and progressive nonfluent aphasia. An overlap between symptoms can occur as the disease progresses and spreads through the brain regions. [14]
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