Susan, a 52-year-old woman, presented to her gynecologist with complaints of hot flashes, night sweats, and vaginal dryness. She had not had a menstrual period for 6 months. A physical exam confirmed the absence of uterine bleeding and a decrease in vaginal lubrication. To manage her symptoms, Susan was prescribed hormone replacement therapy (HRT) in the form of estrogen and progesterone. What is the primary goal of hormone replacement therapy (HRT) in menopause?