For many women, noticeable hormonal changes begin during perimenopause, the transitional stage leading up to menopause when hormone production begins fluctuating more significantly. During this period, estrogen and progesterone levels may begin shifting in ways that affect both physical and emotional health.
Perimenopause can begin earlier than many women expect, sometimes starting in the late 30s or 40s, often years before menstrual cycles stop completely (The North American Menopause Society, 2022). During this stage, symptoms can gradually become more disruptive and may affect energy levels, weight management, sleep quality, mood regulation, and mental clarity.
Menopause itself marks a significant hormonal transition, but many women find that the years leading up to menopause can feel equally challenging as the body continues adjusting to changing hormone levels over time.