Alzheimer's disease and it's symptoms?

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.
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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.
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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.
Symptoms of...