I had a period of time where i rolled pretty hefty (think like .6g per session average) every 2-4 weeks for the better part of 2 years. I did notice my short term memory after this period deteriorated as it pertained to trying to remember names, particularly those of famous people. I could picture them in my head, but i couldnt come up with their names while trying to explain a movie, for instance. Even if the actors name was then brought up or i arrived to it, i had trouble then recalling it again.
This was kind of a wake up call - or sign of notice that i had impacted my brain physically. I still used probably every month to 1.5 months after this, but that reduction, helped significantly and my short term memory got back on track.
Now i only use at most 4 times a year at most and everything is great, but sometimes i still get name recall issues. I can picture the person, but can't come up with the name sometimes and it will frustrate me, but it doesnt happen too often and generally when i feel like im having an off day. I also feel like I have name memory problems, where it takes me a while to remember someones name sometimes (i think i have general name anxiety too thats an issue - i am afraid of getting someones name wrong, so will avoid saying it).
Other than this my memory has been great and better than most if not all my friends, but for the most part my memory and brain has always been fairly top notch in that regard.
Its just weirdly sometimes....the names.