Alzheimer's is caused by toxin buildup in the brain, this would include heavy metals and environmental toxins.
The cause of Alzheimer's is unknown. There are several hypotheses on it though. The most predominant is an aluminum build up in the brain. This is an old hypothesis was based on the finding of abnormally high aluminum contents in the brain of Alzheimer's patients. The second primary hypothesis is that it is caused from calcification of the brain neurons.
Get a product that will detoxify - see naturopath4you.com click on silver fillings - see the Zeolite product.
All zeolites are aluminum silicates. I am still pretty leery about ingesting aluminum compounds.