Hi TJ,
My dad also had Alzheimers as have most of my friends parents. I am convinced it is diet related. It is the Western diet that is killing off our brains. There are countries around the world such as India, Japan and the medeterranean countries where it is very low and then there is countries where is is high like in the UK.
My dads diet was poor, he didn't like veggies and mainly ate pies and sweet foods. It's probably politically unacceptable to talk about the issue.
The old saying "You are what you eat" comes to mind.
Regards
Neil