The common over-the-counter products linked to Alzheimer's? The list includes "antihistamine used to treat allergies", including some commonly given to children.
I've also read about many children experiencing behavioral and aggression problems atypical to their normal personalities while on said OTC antihistamines. Mostly anecdotal, of course, but to me this seems like there's something strange going on for some people regarding the brain and antihistamines. I'm not about to swear off modern medicine forever and drink tea from leaves in my backyard or anything, but I'm getting a little wary of those antihistamines especially since I have pretty mild allergies.
The website
BrainFacts.org, partly produced by the Society for Neuroscience, has a nice informational page on Alzheimer's disease in general. (If you search the SfN page you can find more technical articles than you'll ever need, but they're not good for casual, informative reading.)
