80 percent of women experience menopause symptoms — but only 4 to 6 percent of eligible US women receive HRT, down from 27 percent in 1999. This complete 2025 guide covers all three stages (perimenopause, menopause, postmenopause), the full symptom spectrum including GSM, the WHI clarification that changed everything, fezolinetant as the first new non-hormonal hot flash treatment in decades, a 6-type HRT comparison table, a 7-option non-hormonal treatment table, and why only