the anorexia nervosa It was first described in the mid-19th century, characterized by being a distortion of the body image that leads to the constant search of the thinness which produces that the individual is eating almost in its entirety.
according to World Health Organization (WHO), the diagnostic criteria for anorexia nervosa are:
● Significant loss of weight, or lack of weight gain in children, so that body weight remains at least 15% below the expected normal weight for the corresponding age and height.
● Weight loss is self-induced by rejection of foods that are fattening, or by self-inducing vomiting, the use of laxative medication, diuretics (which makes them more frequently urinate) or drugs that suppress appetite, or # 39 Excessive exercise It is common for patients to develop rules about which meals are allowed, or to claim that exercise is necessary after eating a certain amount of food.
● Distortion of the body image along with an intense and persistent fear of gaining weight or fattening, all this combined with the constant feeling of being fat, even when its weight is objectively inferior to other people of its same height, so that the patient sets a much lower limit than their body weight.
● Loss of weight causes hormonal disorders that can cause the loss of the period in women, and impotence and loss of sexual interest in men.