Generally healthy premenopausal and postmenopausal women aged 45-55 years of all races/ethnicities will be enrolled. 1. Premenopausal women will have regular menstrual periods (every 21-35 days). 2. Postmenopausal women will have gone through natural (i.e., non-surgical) menopause with the final menstrual period occurring less than 6 years ago.
Exclusion criteria: 1. Medications to treat high blood pressure, cholesterol, diabetes or heart disease 2. Use of menopausal therapy or hormonal contraceptives 3. Currently pregnant or intending to become pregnant 4. Smoking
University of Colorado Hospital
Protocol Number: 21-3590
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