So I finally sorted out what happened to my brain
I don't necessarily doubt the author, but how do you chronically deprive your brain of glucose?Afaik you would get glucose back whenever you ate anything. Unless you were doing keto, but then your body and brain run on ketones. And if you did somehow deprive your brain of fuel, you would get symptoms in a much shorter span.Maybe undereating, but he doesn't list weight loss, and if you're rapidly losing weight and start to notice these symptoms it would seem pretty obvious to try eating more.