Yes, I think my cognitive function is better on Exemestane, than Anastrozole. But not what I formerly had before BC. Being on AI’s is like going through menopause to the extreme! Our Estrogen is driven down so much to prevent a recurrence by the BC drugs-our symptoms with those drugs is like menopause ++++!!! It’s very hard for other people to understand. Some of my family members have made fun of me because I can’t think clearly sometimes,, so often I just shut up and don’t say anything. It’s kind of isolating... but I know for myself that I’m not crazy or sliding into dementia. I saw my regular geriatric doctor about 2 weeks ago for a routine physical that included a memory test and I did just fine. It seems that there’s always a way around the challenges we face if we look for it! 😀