Cognitive endurance is more complicated than a muscle. How do you begin to think about the complication of what cognitive endurance is and how it can therefore be boosted? Here's what i think is going on with omsar, who was this distinguished golfer. A graduate student at columbia university trained herself to do four digit by four digit mental math multiplication. And she did this for hours in a row on consecutive days. She started off strong and just got worsewithit was like a little up tick. I mean, isn't the moral of nearly every story, almost every story, a sandwich?"