Getting older myself, and worried about the state of my brain in later years, I tend to read dementia articles a little more closely than I did when I was younger.
I looked at this discussion of a study in which it was found that drinking wine monthly or weekly was an indicator for decreased dementia compared to those who never or hardly ever drank wine. It also found that those who drank beer weekly or monthly had an INcreased chance for dementia compared to those who never or hardly ever drank beer.
The review was interesting.
I noted this one as well because I received a research paper on the pros and cons of drinking alcohol and one of the pros was that drinking wine is associated with lowered dementia. I wonder if my student knew that drinking beer is the opposite. The research papers were supposed to be on a controversial subject and I wasn't supposed to be able to tell which side they agreed with.