Estrogen

Low estrogen produces a wide range of symptoms: hot flashes, night sweats, sleep disruption, vaginal dryness and discomfort, urinary urgency, mood changes including anxiety and depression, brain fog, difficulty concentrating, joint aches, skin thinning, hair changes, reduced libido, and accelerating weight gain — particularly abdominal. These symptoms can appear during perimenopause when estrogen is still fluctuating, not just after menopause when it is consistently low.

Estradiol (E2) is the dominant, most biologically active estrogen during reproductive years — the one most relevant to symptom management and systemic health protection. Estriol (E3) is produced mainly during pregnancy and is used in some vaginal preparations for genital-urinary symptoms. Estrone (E1) becomes the dominant circulating estrogen after menopause, produced primarily from fat tissue. When we prescribe estrogen at SPOKEmed, we use bioidentical estradiol — the form with the most evidence for symptom relief and health protection.

Estrogen actively maintains insulin sensitivity, supports lean muscle mass, regulates fat distribution (favoring hips and thighs over the abdomen), and influences energy expenditure. When estrogen declines, all of these regulatory functions weaken simultaneously — producing the metabolic changes that drive midlife weight gain. This is why hormone therapy and metabolic support are not separate treatments at SPOKEmed — they are integrated.