No conclusive by an stretch but there seems to be a positive effect for blood pressure meds that cross the blood-brain barrier. it's not all roses, they found those taking these drugs were less attentive ( I have the attention span of a gnat). Anyway, thought I post the abstract for those who are interested.
I'm on candasartan, a blood-brain crossing med and my memory is fine...attention has never been good. And for those on Zytiga and predisone who are having blood-presssure issues and are taking med to counter act, it might be worth while having a conversation with you cardiologist if a change would be worth while.