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: Physiology
Growth hormone secretion is decreased by ? 
Select and explain. 
A. Hypoglycemia, B. Exercise, C. REM sleep, D. Stress
C: REM sleep
Answer: C: REM sleep 
Explanation: Ans. is 'c' i.e., REM sleep REM sleep decreases the secretion of GH. Other three stimuli increase GH secretion.