Book Recomendation

Carved in Sand: When Attention Fails and Memory Fades in Midlife, by Cathryn Jakobson Ramin

You should all get and read, and then follow up on whatever little ghosties of your own she's covered.
My particular little ghost is Alzheimer's, which showed up from nowhere in my Grandmother's generation and hit ALL that generation. Why? It wasn't there the generation before. Are my mother and the rest of her generation going to get it? What about me and my cousins and second cousins, the extended clan? What about our children? I've now got information on some of the researchers in the field. Would you want a genetic test that would tell you if you are more or less likely to develop it? These scientists have one.

Although the memory effects of OTC and perscription drugs are also alarming, Alzheimer's is the monster hiding in the closet, the bogeyman.
The author also covers thyroid problems, insomnia, and a bunch of other causes of memory loss, which I can't remember right now, and various treatments.