As I came into contact with more bulimics, I found some commonalities, which I summarized as “double abuse”, i.e., physical abuse and emotional abuse. Abuse here means self-harm. The use of the word abuse does seem serious, but I think it is the only word that describes the way bulimics treat themselves. Physical abuse is the way the body is harmed by dieting to lose weight, vomiting, taking laxatives, or excessive exercise. The body has the instinct to protect itself, and after dieting or overconsumption, the body sends out a craving for food. This instinct sends out an impulse that is not controlled by reason, and sometimes it is overly strong, so there is a feeling of being out of control. This is the reason why people especially want to eat food when they are hungry, and even eat much more than usual. After a short period of gorging, the bulimic excretes the food in various ways, and the organism still has not reached satisfaction and still has a strong desire for food. Mental abuse is a way of harming mental states such as demanding perfection, low self-esteem, self-denial, and inability to treat oneself well. In these states of mind, the individual is psychologically stressed and in a bad mood. If not self-adjusted, the negative emotions get heavier over time. Also out of the instinct of self-preservation, the organism will seek a way to vent these stresses and gain a basic security and satisfaction. Many people are addicted to alcohol and drugs for this reason, where the organism finds the pleasure that it normally does not find. Diet is also a way to give us security and satisfaction. Especially for people who have the physical abuse mentioned above, eating more brings not only physical satisfaction to the organism, but also mental satisfaction to the organism, so the doubly abused organism reaches satisfaction through food again and again. The instinct is irrational, narrow-minded and excessive, it only cares about the immediate benefit and does not realize that the long-term consequences of such compensation are harm to the body and torture to the reason, so the glutton is very painful. Only physical abuse, but not spiritual abuse, may be just an ordinary weight loss process. If there is no physical abuse, but only mental abuse, it may be just a personality problem or depression. The presence of both physical and mental abuse leads to bulimia. This mechanism explains the condition in most bulimics, but may not apply to anorexia nervosa or atypical eating disorders. Here is a wake-up call for bulimics to stop thinking that they binge eat because they are too gluttonous and have no perseverance. You are overeating because your body is hungry and your mental state is depressed. Stop letting your instincts take over your body. You need to eat three regular meals a day, stop vomiting, throw away diet pills and laxatives, end excessive exercise, and at the same time see your own strengths, learn to self-affirm, learn to treat yourself well, and learn to vent your bad emotions so that you can get out of the vicious cycle of overeating-cleaning.