Final answer:
Anorexia nervosa is an eating disorder characterized by the relentless pursuit of thinness through starvation. It involves maintaining a body weight well below average and often includes a distorted body image known as body dysmorphic disorder.
Step-by-step explanation:
Anorexia nervosa is an eating disorder that involves the relentless pursuit of thinness through starvation. Individuals with anorexia nervosa maintain a body weight well below average by restricting their food intake and often have an unrealistic perception of their own low body weight, seeing themselves as fat even when they are very thin. This misperception, called body dysmorphic disorder, is commonly associated with anorexia nervosa.