This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': 'About fibromyalgia all are true except \nSelect and explain. \nA. Associated with EEG abnormalitie, B. More common in males than females, C. Associated with low free coisol levels, D. Associated with decreased blood flow to brain', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'b' i.e., More common in males than females Fibromyalgia is more common in features. It is associated with disturbed sleep physiology. The sleep anomaly is alpha wave intrusion during NREM stage 4. There are 5 main measurable neuroendocrine abnormalities are associated with dysfunction of the HPA axis seen in fibromyalgia. These include :- Low free coisol levels in 24-hour urine samples. Loss of the normal circadian rhythm, with an elevated evening coisol level (when it should be at its lowest level). Insulin-induced hypoglycemia associated with an overproduction of ACTH. Low levels of growth hormone. Stimulated ACTH secretion leading to insufficient adrenal release of gluocoicoids", 'role': 'assistant'}]