Alzheimer's is a disease which causes changes in the brain. It's a condition in which the nerve cells in the brain die, making it difficult for the brain's signals to be transmitted properly. The death of the nerve cells occurs gradually over a period of years. It's a slow disease which starts off causing mild memory problems and ends up causing serious mental damage. It affects a person's ability to think, remember, and talk. It develops as a result of a complex cascade of biological processes that take place over m
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