Integrated concentrations of follicle stimulating hormone and puberty

Integrated serum concentrations of follicle stimulating hormone are compared from 25 males (aged 6-27 years) and 8 females (aged 5-16 years). Mean levels of FSH among prepubertal and early-to-mid pubertal individuals were significantly greater during sleep than while awake. Levels for late pubertal and postpubertal individuals do not differ between waking and sleeping periods.