The Importance of Mental Fatigue

The brain's primary fuel is going to be glucose, whether we're on a ketogenic diet or not. We'll sustain blood sugar in part to make sure we can feed the brain. But I think what invariably happens is we reach only to feed that energy in the brain because we overwork on part of it. And then, you know, our brain doesn't really multitask in the way that we think it does, right? It does one thing and it,. you know, can shift so that back and forth that we have the illusion it's multitasking.