All of the feelings that we have, hunger, pain, thirst, sleepiness, anger, envy, elation, i think all of them are signals. For example, when you have hunger, you're not about to kell over, but it would probaly get the idea to have a sandwich right now. I don't quite understand whatyou're saing about this signal. Are you sure you want to keep doing it? By our 12 she felt exhausted, but i don't think she was exhausted. When you're saying yourself, your mind, your cognition, is sending you a signal that you feel depleted, but in fact, you're probably not as deplete as you