NPR aired a very interesting story on Alzheimer’s.
There were many important arguments presented for or against screening for Alzheimer’s. You can listen to the podcast here. In particular, since there is no treatment available, it seems pointless to screen for Alzheimer’s. However, if you want to participate in clinical trials that might someday stop or reverse Alzheimer's disease, it's important to screen for it. Here is the map of current ongoing clinical trials on Alzheimer's disease.