This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology and Reproduction, Subject name: Physiology
Growth hormone secretion, true is: 
Select and explain. 
A. Continuous secretion, B. Stimulated by somatostatin, C. Stimulated by cortisol, D. Stimulated by exercise
D: Stimulated by exercise
Answer: D: Stimulated by exercise 
Explanation: Ans. (d) Stimulated by exercise(Ref: Ganong, 25th ed/p.325)Growth hormone secretion is pulsatileCortisol and somatostatin inhibit growth hormone secretionExercise increases growth hormone secretion