Abstract
Adolescence, the time of life when people are changing and maturing between childhood and maturity. Adolescents are defined by the World Health Organization as those between the ages of 10 and 19. However, adolescence is sometimes incorrectly and narrowly associated with puberty and the physical changes that lead to reproductive maturity in many civilizations. Adolescence is not only associated with physical changes but also with developmental shifts in the individual's mind, social life, and moral code in certain cultures. The term "adolescence" is essentially equal to "teens" in these cultures, referring to the time between the ages of 12 and 20. Anorexia nervosa is a psychological disorder characterized by self-starvation and medically low body weight. Research indicates that anorexia nervosa develops through complex interaction among social, psychological and biological risk factors. Anorexia nervosa is most common in adolescent girls and young women but affects other age groups and genders. Maximum girls fearing of gaining weight and distorted perception of weight.
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