Why This Matters More for Women Women’s hormones are incredibly complex and constantly shifting. From puberty through menopause, our bodies navigate dramatic hormonal transitions that men simply don't experience. Every month, estrogen and progesterone rise and fall in a delicate dance that affects everything from energy levels to food cravings to how efficiently we burn fat. During perimenopause (which can start in your late 30s or early 40s), hormonal chaos becomes the norm.