<prompt> Growth hormone secretion is decrease by all exceptGlucoseStressful stimuliSleepSomatostatin  <response>: C Sleep Stressful stimuli also increases GH levels. Whereas REM sleep decreases GH secretion, but going to sleep increases it. Stimulators of growth hormone GH secretion include: peptide hormones; GHRH somatocrinin through binding to the growth hormone-releasing hormone receptor GHRHR Ghrelin through binding to growth hormone secretagogue receptors GHSR Sex hormones; increased androgen secretion during puberty in males from testis and in females from adrenal cortex; estrogen Inhibitors of GH secretion include: GHIH somatostatin from the periventricular nucleus circulating concentrations of GH and IGF-1 negative feedback on the pituitary and hypothalamus hyperglycemia; glucocorticoids; dihydrotestosterone in addition to control by endogenous and stimulus processes, a number of foreign compounds xenobiotics such as drugs and endocrine disruptors are known to influence GH secretion and function. 