At any age, women can experience all kinds of problems with their menstrual cycles, including cramps, back aches, PMS, low energy, irregular cycles, uterine fibroids, mood swings, hot flashes, and more. I know - I was one of them! These problems are due in part to hormonal imbalances, in particular an imbalance between estrogen and progesterone. . The good news is that there are many ways to naturally balance your hormones, and seed cycling is one of them!