Final answer:
Anorexia nervosa is an eating disorder characterized by low body weight and a distorted body image. It is often associated with body dysmorphic disorder.
Step-by-step explanation:
Anorexia nervosa is an eating disorder characterized by a persistent restriction of food intake, resulting in significantly low body weight. People with anorexia nervosa have an intense fear of gaining weight and a distorted body image, perceiving themselves as overweight even when they are severely underweight. This distorted body image is a symptom of body dysmorphic disorder, which is often associated with anorexia nervosa.
Individuals with anorexia nervosa often engage in extreme behaviors such as excessive exercise or starvation to maintain low body weight. If left untreated, anorexia nervosa can cause serious health problems and in some cases, even death. Treatment for anorexia nervosa typically involves a combination of therapy, nutrition counseling, and medical monitoring.