I've had Ms for Ions, but haven't noticed any cogfog, of note. I'm retired though, and pretty much of a hermit, these days, so I don't have to tax my brain, too much, anymore..

I try to keep my brain active, by doing crossword puzzels and other brain games, online....Word Whomp an others at POGO.. I'm a retired Accountant and I can still play the numbers game, well. I've noticed some short term memory issues but, did I mention, that I'm OTD..

Thanks Dave, for your informative and helpful post..