This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Physiology
[{'content': 'Growth hormone level decreased in \nSelect and explain. \nA. Hypoglycemia, B. Fastiny, C. Sleep, D. Exercise', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Growth hormone (GH or HGH), also known as somatotropin or somatropin, is a peptide hormone that stimulates growth, cell reproduction and regeneration in humans and other animals. Ref: Ganong&;s review of medical physiology; 24th edition; page no:-327', 'role': 'assistant'}]