Final answer:
Poor academic achievement is not a symptom of anorexia nervosa, which is an eating disorder with symptoms like severe loss of body weight, distorted body image, and a preoccupation with food.
Step-by-step explanation:
Anorexia nervosa is an eating disorder characterized by significantly low body weight due to excessive dieting and often excessive exercise. Individuals with anorexia nervosa generally have a severely distorted body image, perceiving themselves as overweight despite being underweight, and a preoccupation with food. However, poor academic achievement is not a symptom of anorexia nervosa and hence is the correct answer to the question:
Anorexia nervosa typically includes all of the following symptoms except poor academic achievement.
The condition is associated with serious health risks such as heart failure, bone loss, and kidney failure, and it includes psychological repercussions like anxiety and mood disorders. It is important to note that the symptoms of anorexia nervosa are linked directly to its nature as an eating disorder and do not inherently include academic performance.