Final answer:
Individuals with anorexia nervosa commonly suffer from body dysmorphic disorder, leading them to mistakenly see themselves as overweight despite being underweight. Recovery is possible with treatment, but some may struggle with the disorder for a lifetime.
Step-by-step explanation:
People with anorexia nervosa often have a distorted body image, which makes them unable to accurately perceive their physical appearance. Despite being significantly underweight, individuals with this condition may still feel fat and continue to restrict their food intake, sometimes exacerbated by excessive exercise. This misperception is due to a psychological disorder known as body dysmorphic disorder, which is common in those suffering from eating disorders, including anorexia nervosa.
Environmental and cultural factors, such as idealization of thinness, may contribute to the development and perpetuation of eating disorders. Recovery from anorexia nervosa is possible with treatment, although maintenance of a healthy weight and eating habits can be a lifelong struggle for some.