Cause+of+Alzheimer's+by+Leo+and+Jerry


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=__The Causes of Alzheimer's Disease__=

Many scientists had been studying on the causes of Alzheimer's disease and now the mystery had been solvied. The theory is that plaques and tangles block nerve cell's ability to communicate with each other, which makes it very difficult for the cells to survive.

They are many reasons why people get alzheimer's.

1. **Age**. Aging is the most common factor for getting Alzheimer's disease. Research has proven that almost one out of eight people over the age of 65 would get Alzheimer's.

2. **Family History**. People who had family members that got Alzheimer's disease is 3 times more likely to develop it. If there are are more than one family member with Alzheimer's, the risk is increased. Scientists discovered that APOE 4 was the gene that increases the percentage getting Alzheimer's, but this fact is still under research, figuring if it was true or false.

3. **Injuries**. Injuries can also cause Alzheimer's such as serious head injuries. Scientists also found a connection between head injuries and development of Alzheimer's.

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__**Quick Assessment**__

1. Name the three major reasons for the causes of ALzheimer's Disease. Give a breif detail of each.