What eating disorder is identified by amenorrhea, low body weight, bradycardia, and an abnormal body image in a young woman?

Anorexia nervosa is characterized by a significant restriction of energy intake relative to requirements, leading to a markedly low body weight in the context of age, sex, development trajectory, and physical health. The condition often includes amenorrhea, which is the absence of menstruation, a hallmark symptom among females and an indicator of the undernourishment and metabolic state induced by the disorder.

In addition to amenorrhea, individuals with anorexia may exhibit bradycardia, which is a slower than normal heart rate. This can result from the body's adaptive mechanisms to conserve energy due to reduced caloric intake and metabolic demand.

Another essential aspect of anorexia nervosa is a distorted body image, where the individual perceives themselves as overweight despite being underweight. This distorted perception plays a critical role in the maintenance of the disorder, as the underlying psychological factors contribute significantly to their eating behavior and self-esteem.

In contrast, binge eating disorder primarily features recurrent episodes of eating large quantities of food without the compensatory behaviors seen in bulimia nervosa, where individuals engage in behaviors such as vomiting or excessive exercise. Pica involves eating non-nutritive, non-food substances and is not characterized by the same physiological or psychological symptoms as anore