When they are in a bad mood, many people will go through other things to detoxify these bad emotions, some people are going to buy, some people are going to exercise, while there are some people are eating and eating, turning their grief into appetite and allowing themselves to eat a lot. If you grieve more often, you will find yourself getting heavier and heavier, making you feel more depressed, thus falling into a vicious cycle. Not only sad, many emotions can affect our appetite, for example, some people will lose their appetite because of bad mood, and become unwilling to eat; while some people are the opposite, bad mood when the appetite becomes better than before, in feeling stressed or anxious appetite will always have to eat the idea of food. For this phenomenon, psychologists believe that this may be the result of parents allowing themselves to develop bad habits in infancy. Most people parents actually lack parenting experience, it is difficult to figure out the needs of the baby. For example, there are many reasons why babies cry, they may feel scared or uncomfortable, hunger is just one of them, but some parents feel that their babies are hungry as soon as they cry, and immediately start feeding them, plus at this time babies still lack the ability to distinguish, so they develop the conditioned reflex of wanting to eat when they have negative emotions. In addition to the conditioned reflexes developed during infancy and early childhood, normal habits can also make us develop the psychology of wanting to eat when we are in a bad mood. Some people like to chew gum or get high to relieve their bad mood, because chewing can make the facial muscles less tense, so that we indirectly feel their bad mood is relieved. Over time, this behavior has evolved into chewing food, so some people feel stressed or in a bad mood, although they are not hungry but just want to eat. These habits exist inside our subconscious mind, it is not easy to change it, only by developing other behavioral habits to guide themselves and slowly fade this conditioned reflex.