This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General physiology, Subject name: Physiology
[{'content': 'Decreased basal metabolic rate is seen in \nSelect and explain. \nA. Obesity, B. Hypehyroidism, C. Feeding, D. Exercise', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The remaining options utilise energy. Basal metabolic rate and obesity The basal metabolic rate accounts for about 60 to 75% of the daily calorie expenditure by individuals. It is influenced by several factors. BMR typically declines by 1-2% per decade after age 20, mostly due to loss of fat-free mass, although the variability between individuals is high. Ref guyton and hall textbook of medical physiology 12/e pg843', 'role': 'assistant'}]