Alzheimer's disease and it's symptoms?

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David · Accepted Answer

Alzheimer's disease (AD), 
Alzheimer's disease (AD), also referred to simply as Alzheimer's, is a 
chronic neurodegenerative disease that usually starts slowly and worsens 
over time. 
Alzheimer's disease 
Like all types of dementia, Alzheimer's is caused by brain cell death.
3
 It 
is a neurodegenerative disease, which means there is progressive brain 
cell death that happens over a course of time.  
The total brain size shrinks with Alzheimer's - the tissue has 
progressively fewer nerve cells and connections.
3,4
  
 
 
Nerve cells (neurons) in the brain.  In Alzheimer's, there are microscopic 
'plaques' and 'tangles'  between and within brain cells.  
While they cannot be seen or tested in the living brain affected by 
Alzheimer's disease, postmortem/autopsy will always show tiny 
inclusions in the nerve tissue, called plaques and tangles
 Plaques are found between the dying cells in the brain - from the 
build-up of a protein called beta-amyloid (you may hear the term 
"amyloid plaques").  
 The tangles are within the brain neurons - from a disintegration of 
another protein, called tau.  
 r's, and carrying certain genes.

Alzheimer's disease and it's symptoms?

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