which can cause functional hypothalamic amenorrhea (FHA). The HPO axis controls the reproductive cycle. When it is not ...

Secondary amenorrhea is when you have missed three or more cycles, and studies suggest it affects 30% of women who exercise regularly. Functional hypothalamic amenorrhea (FHA) is one of the most ...

If improving your performance and building muscle is your goal, you should pay attention to what your menstrual cycle is doing. It turns out, amenorrhea can lead to a bigger risk of injury.