Concept:
Body Budget -> how much resources you need: Sleep, Rest, Food, Water
Your brain tries to estimate your body budget and then tries to predict why it is the way it is. So for example, your brain could estimate that you need rest. Then predicts what is causing that need. If something is blocking your rest, then it will treat that thing as an obstical to be overcome. Estimations of body budget can be wrong and so can the predictions. If they are wrong and NOT corrected then you end up getting worse estimations and worse predictions later on.