Adolescent children always have their own pursuit of beauty, see so movie stars are always envious, so for their own body in adolescence in all aspects of change is not clear understanding began to blindly lose weight, do not eat hungry only drink water, although the body down, but the anorexia of adolescence also arose. Originally, adolescent girls should begin to store body fat, breast augmentation, hips increasingly garden, pelvic widening, these natural physical characteristics are precisely the most attractive reveal of female beauty. However, some girls who are introverted, careless, restrained, stereotypical, sensitive, dependent and capricious are nervous about the changes in their body shape and have an unwarranted psychological burden. So they desperately diet, do not eat meat and eggs, drink water when hungry, practice a variety of qigong, simply a bit of self abuse. In order to prevent others from discouraging them, they always intentionally maintain a mentally healthy, vibrant and jovial appearance; but it is always impossible not to reveal malnutrition, such as amenorrhea, anemia, or even fainting in class or gym class. From restricting the diet to anorexia or refusal to eat, it can be called anorexia nervosa, and finally a conditioned reflex to become nauseous at the sight of food. As a result, young girls will quickly become excessively thin and weak due to malnutrition, have shriveled breasts, lose their hair, look blue and gray, and even become mentally dazed. At this point, it is impossible to recover on your own and must be treated by a doctor to correct the problem, otherwise it is life-threatening. Only after regular treatment can we regain our previous image of graceful, plump and beautiful lines, and our state of mind can be cheerful, cheerful and confident again. Some girls only have a greenish-yellow face, frequent headaches, panic and shortness of breath, fatigue and weakness, but they are not thin and even a little puffy, except for partiality, their appetite is still okay, which is not anorexia, if we check the hematocrit, we can find that they belong to anemia, or iron deficiency anemia in adolescent girls. So how do they develop iron deficiency anemia? This is because their rapidly developing bodies need sufficient nutrition and the amount of iron required increases dramatically, but due to partial eating or improper eating habits, the intake cannot meet the needs of the organism, so iron deficiency occurs. After the onset of menstruation, teenage girls lose an average of 30 to 60 ml of blood per month, and if combined with the effects of ulcers, hemorrhoids and other diseases, the amount of iron consumption increases additionally, which undoubtedly aggravates the body’s iron deficiency. Due to the prevalence of the pursuit of slim figure of young girls, dieting, partial diet, avoid eating meat, and make the supply of iron is insufficient, due to irregular diet, prone to chronic gastritis, more affect the absorption of iron. Physical health is the greatest pursuit of people, healthy people are the most beautiful, excessive thinness will only let others see unhealthy and malnutrition. For the sake of their future growth, so adolescent children should correctly understand the changes in their bodies, as long as they maintain healthy eating habits, adhere to exercise will certainly have the best body.