Anorexia nervosa Anorexia nervosa is a psychologically disabling disorder in which excessive dieting and refusal to eat for fear of gaining weight results in weight loss, malnutrition, and even refusal to maintain a minimum body weight. About 95% are female and often have similar personality tendencies in adolescence. Patients with anorexia nervosa tend to have difficulties in treatment, so about 10-20% of them die early. The causes are mostly complications caused by malnutrition and suicidal behavior triggered by mental depression. Etiology 1, often related to social factors, more than the excessive pursuit of physical slimming psychology. Because of the fear of getting fat, that fat is unhealthy, unattractive, thin on the spirit, attractive, so the requirements of the body and their expectations, so that they pay great attention to diet and body weight, lest eating will be fat, so eat less or do not eat food, or eat into and then try to spit out. Mostly seen in those cautious, self-control ability of successful women. 2, such patients are mostly introverted, sensitive, suspicious, paranoid, emotionally unstable, unwarranted picky and preferences. 3, related to the family environment, such as: parents of children too strict discipline, excessive pursuit of perfection; children are overly dependent on their parents; abused since childhood, single-parent families. Such children are prone to paranoia, sensitivity, poor mental capacity and other personality traits. 4, and the body's hormone secretion imbalance, such as estrogen, thyroid hormone secretion decline, corticosteroid hormone elevated. Symptoms 1, patients pay too much attention to diet and worry about the psychology of fat, and actively refuse to eat or excessive dieting, resulting in thinness, malnutrition, dry skin, edema, and even bone thin, even so, but also think that this is the "bone beauty", only this kind of worry and control will have such an effect. 2、Patients often have the feeling of hunger, but they force themselves not to eat. They are good at researching the nutrition and calorie content of food; they hide or waste food on purpose. About 50% of anorexia nervosa patients are accompanied by bulimia. After overeating, they induce vomiting, take diet pills, laxatives, etc., or do a lot of exercise for fear of weight gain, which leads to water-electrolyte disorders (hypokalemia, hyponatremia, etc.) and acid-base balance imbalance (metabolic alkalosis). 3, women tend to have reduced or stopped menstruation, and both men and women have lack of libido; 4, decreased heart function, slow heart rate, decreased blood pressure, and arrhythmia, leading to sudden death; decreased cardiac blood flow and insufficient cerebrovascular blood supply, which can easily lead to fainting. 5、Significant weight loss and edema; abnormal hormone levels in the body, resulting in fine hair or excessive body hair. 6, patients are often accompanied by personality changes, such as depression, anxiety, temperamental, forced or repeated to do something; often lie, hide their eating habits. The main symptom of anorexia nervosa is that the patient is not interested in food and has no appetite to eat. The patient's thoughts are far from reality, and he or she feels fat all the time, even if he or she is already thin. According to the American Psychiatric Association's standard diagnosis, people with anorexia nervosa tend to weigh 15 percent less than the standard BMI. What are the implications? Patients suffer from malnutrition due to prolonged excessive dieting, which may affect physiological changes, including menstrual disorders or even menopause. Common symptoms include: rough and cracked skin, pilosebaceous hair, drop in body temperature, slow heartbeat, weakness, dehydration, pallor, inability to concentrate, even anxiety or depression, poor heart function, and even fainting. At the same time, due to the lack of fat in the patient's body, he or she is prone to chills and coldness. If the condition is serious, it can lead to heart failure and even death. How is it treated? The treatment of anorexia nervosa depends on the patient's condition. If the condition is serious, the patient may have to be admitted to the hospital for observation and treatment by psychologists, specialists and dietitians, together with behavioral treatments, so that the patient's weight can be gradually regained. If the condition is not too serious, the patient may recover under the counseling of a psychiatrist. It is worth noting that patients with anorexia nervosa who are still in their developmental stage and whose organs have been damaged may not be able to return to normal functioning after their condition has improved, which may affect their physical development and growth. Whether a patient can recover must also depend on the patient's willpower, and the course of treatment varies from person to person, ranging from a few months to a few years. The most important thing is to treat the disease as early as possible and not to wait until the disease is very serious before going to the door to see a doctor. It is worth mentioning that many patients in the early stages of the disease are reluctant to admit that they suffer from anorexia, and family members due to the busy life, or infrequent meals together, and ignored the patient's condition, and wait until the discovery of the problem, the condition is often already not light.