1 Stimulation of growth hormone secretion: Ghrelin, as the ligand for the growth hormone secretagogue receptor, potently stimulates secretion of growth hormone. 2  The ghrelin signal is integrated with that of growth hormone releasing hormone and somatostatin to control the timing and magnitude of growth hormone secretion.
Have your average cycle length automatically calculated at MyMonthlyCycles.com whenever you update your free period calendar! It's simple! Details below ... The textbook average for a woman's menstrual cycle length is 28 days, and for period length, 3 to 5 days. Clearly, many of us know firsthand that these textbook stats don't always (or even ever) reflect our unique cycles!
The average menstrual cycle length -- that would be from the first day of your period until the next period begins -- is said to be 28 days. There's a misconception that anything shorter or longer than 28 days is not normal, but this isn't true. A cycle as short as 21 days or as long as 35 days is considered normal.