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Alzheimer's disease does not affect all memory capacities equally. Older memories of the person's life (episodic memory), facts learned (semantic memory), and implicit memory (the memory of the body on how to do things, such as using a fork to eat or how to drink from a glass) are affected to a lesser degree than new facts or memories. [42] [43]
Alzheimer's disease accounts for 60–70% of cases of dementia worldwide. The most common symptoms of Alzheimer's disease are short-term memory loss and word-finding difficulties. Trouble with visuospatial functioning (getting lost often), reasoning, judgment and insight fail. Insight refers to whether or not the person realizes they have ...
Apathy, according to a 2023 study published in the Journal of Alzheimer’s Disease, could be a sign that someone is progressing from mild cognitive impairment (MCI) (less severe than dementia) to ...
This condition may occur due to various different causes, including degenerative, autoimmune, or infectious processes. The most common form of early onset dementia is Alzheimer's disease, followed by frontotemporal dementia, and vascular dementia, with Alzheimer's disease accounting for between 40 and 50% of cases.
Scientists have identified a biomarker for Alzheimer's that may help doctors spot the early signs of protein buildup in the brain before it causes significant damage. New test may detect Alzheimer ...
A new study distinguishes between two distinct phases of Alzheimer's disease: an early, 'stealth' one without symptoms, and a second phase that aggressively damages the brain.
Alzheimer's disease (AD) is a progressive, degenerative and fatal brain disease, in which cell to cell connections in the brain are lost. Alzheimer's disease is the most common form of dementia. [2] Globally approximately 1–5% of the population is affected by Alzheimer's disease. [3] Women are disproportionately affected by Alzheimer's disease.
Stage 4 dementia is when a person has clear, visible signs of cognitive impairment and also exhibits personality changes, with significant dementia behaviors and severe stage 3 symptoms. A person ...
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