It is important to understand the different kind of cravings we have. It is true that there is a physical desire to eat, an instinct as strong as flight from danger or procreation. What isn’t necessarily true, however, is that every sensation of hunger is related to that life-or-death instinct. Psychological cravings can be a part of our response. As we age, we begin to associate good or bad situations with eating. These associations — situations, smells, colors — are attached to emotions (good and bad), and then to eating.