Not that I know of, at least in reasonable amounts (where "reasonable" is defined as not causing clinical-grade medical symptoms, like a failing liver).
I haven't seen any evidence that moderate drinking lowers IQ. And if your drinking is immoderate, cognitive effects are probably not what you should be worried about.
I see. Google tells me that smarter people tend to drink more. Would I be right in assuming that this doesn't mean I should drink to get smarter?
Previous Open Thread
You know the drill - If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one.
3. Open Threads should start on Monday, and end on Sunday.
4. Open Threads should be posted in Discussion, and not Main.