This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Eating Disorders, Subject name: Psychiatry
[{'content': "A 17 year-old female is suffering from insomnia from last 6 months. She also informs about her changed eating habit . She eats alot of food even after eating her evening meals and also wakes up frequently at night to eat again . Due to such behaviour she usually skips her breakfast . She doesn't seem much concerned about her appearance and weight gain . What shall be your probable diagnosis ? \nSelect and explain. \nA. Night eating syndrome, B. Bulimia nervosa, C. Anorexia nervosa, D. Binge eating disorder", 'role': 'user'}, {'content': 'Answer: A \nExplanation: From the symptoms enlisted above , it seem to be a Night eating syndrome Night-eating syndrome Consuming significant amount of caloric intake after an evening meal Diagnostic points : Symptoms persist for >=3 months Recurrent episodes of hyperphagia(At night ) Insomnia In the morning ,lack of desire for food Unconcerned about appearance and weight gain . Binge Eating disorder and other Eating disorders are shoer in duration', 'role': 'assistant'}]