What is polycystic ovarian syndrome (PCOS)? Polycystic ovarian syndrome, or PCOS, is a condition in which a womanâs levels of the sex hormones estrogen and progesterone are out of balance. This leads to the growth of ovarian cysts (benign masses on the ovaries). PCOS can cause problems with a womenâs menstrual cycle, fertility, cardiac function, and appearance.
For the serious over-pronator who needs maximum support from a shoe. 1  Brooks Beast: Solid motion control without excess weight. 2  Brooks Addiction: Very strong support. 3  Asics Foundation: Gel cushioning with plenty of strong arch support.
EVA makes a great cushioning material and is very light and very flexible, but it tends to lose some of its rebound and resilience and becomes âcompression set.â That is one of the major reasons that you should always rotate your running shoes between runs.