How important is a healthy hormone balance? Can the hormones that keep us healthy and happy be the same hormones that cause emotional and physical distress? Our hormones are the most delicately balanced system of our bodies. Women with a healthy hormone balance tend to enjoy long, healthy and productive lives. Long-term hormone imbalance however, can make life pretty miserable for women and their loved ones. Hormone imbalance can contribute to such common problems as premenstrual syndrome (PMS), perimenopausal difficulties, infertility, miscarriage, osteoporosis, breast cancer, heart disease, fibroids, endometriosis, menstrual difficulties, mood disorders and ovarian cysts.