The menstrual cycle is a fundamental aspect of women's health, yet it often remains a mystery to many. Understanding the hormonal changes that occur during the cycle can provide insight into the physical and emotional fluctuations experienced each month. The menstrual cycle is controlled by a few key hormones: estrogen, progesterone, follicle-stimulating hormone (FSH), and luteinizing hormone (LH). These hormones rise and fall at different times in the cycle, causing various