Many women who get periods experience changes in mood and energy levels associated with their menstrual cycle. These changes can be challenging and, for some individuals, can even disrupt daily life. The good news is, learning about the relationship between mental health and the menstrual cycle can help you better understand and cope with the emotional and physical changes you may notice. Read on. Mental health, PMS and the menstrual cycle According to the U.S. Department of Health and Human Services Office on Women's Health, 90 percent of women who get periods experience at least some