Did this a lot when I was having severe dementia problems. Would track results on various medications to see what worked.

95% made a bad situation much worse. Memantine Had a moderate boost.

Went on a Blood thinner and everything resolved.

Do you know why the blood thinners helped? (I'm assuming there was some underlying condition that this treated?)

Me and every one of my friends have seen this horse named Hans, very clever, that could understand everything its trainer said. He could do arithmetic too! I don’t understand why big psychology won’t take our data seriously and finally accept that horses are capable of long division.