@kchiavetta86 I am responding to the 2022 study that you posted first. Please note that the quote that you highlighted concerning evaluation of memory and other cognition pertains to chemo, not aromatase inhibitors like anastrazole:

"The FACT-Cog is a self-assessment questionnaire to estimate memory, attention, concentration, language, and thinking abilities of patients before, during, and after chemotherapy. "

I have read about this study. The study controls for the effects of chemo and of cancer itself (for depression and anxiety for example) in order to more accurately attribute side effects to AI's.

The various side effects are being investigated by the study but that does not mean they are common. They are hypothetical for the study.