Photo Caption #3

This picture shows the difference between the brain cells that are healthy and the brain cells that have been affected by Alzheimer's. The brain cells that have been affected by Alzheimer's have started to die and decay. When the brain cells start to decay, the fibers from the cells start to clump together restricting the signals from the brain going to the rest of your body. When the fibers from your brain cells start to clump, they also stop the signals in your brain that control your memory. As you can see in the picture of the healthy brain cells above, the signals go through the brain to the rest of your body like they should. When you go to the doctor and they do a scan on your brain, this is the picture that they would go by to tell you if you have Alzheimer's or not.  

Source:

"But what actually causes Alzheimer’s Disease?." But what actually causes Alzheimer’s Disease?. Web. 11 Nov 2010.
http://agemyths.com/2010/06/23/alzheimers-disease-and-brain-games/