What is the most significant factor in the production of menopausal symptoms?

• A. Decrease in estrogen
• B. Decrease in testosterone
• C. Increase in progesterone
• D. Increase in androstenedione

Answer: (A)

The most significant factor is the decrease in estrogen production from the ovaries as menopause occurs. Estrogen helps regulate the brain’s thermoregulatory center, and when levels fall, the thermostat becomes unstable, leading to vasodilation and heat sensations that cause hot flashes and night sweats. Estrogen is also crucial for maintaining vaginal epithelium and bone turnover, so its decline contributes to vaginal dryness and increased osteoporosis risk. While other hormones change with aging, their fluctuations are not as closely tied to the classic menopausal symptoms as the drop in estrogen.