the secretion of prolactin and growth-hormone ( hgh ) was investigated during sleep in 10 healthy volunteers ( 8 males and 2 females ) : the comparison of one baseline night , one night after daytime physical exercise , and one night with selective deprivation of sleep stages 3 and 4 and paradoxical sleep showed clear differences of prolactin and hgh secretion during sleep .
C0037663
growth-hormone
C3714500
hgh