Final answer:
Anorexia nervosa is the eating disorder where an individual refuses to maintain normal body weight. It is characterized by the maintenance of a body weight well below average through starvation and/or excessive exercise.
Step-by-step explanation:
The eating disorder where an individual refuses to maintain normal body weight is called Anorexia nervosa. Anorexia nervosa is characterized by the maintenance of a body weight well below average through starvation and/or excessive exercise. People with anorexia nervosa often have a distorted body image and view themselves as overweight even though they are not. This disorder is associated with significant negative health outcomes and an increased risk for psychological problems.