Scientists Studied 1 Million Women Before Menopause—One Pattern Stood Out

Key Points:

• A new study from Israel reveals women experience a sudden "physiological cliff" across multiple body systems around the time of menopause, rather than gradual changes with age, increasing risks for conditions like osteoporosis, liver disease, and heart disease.
• Researchers analyzed over 300 million lab tests from more than 1 million women, finding abrupt changes in sex hormones, bone density, liver and kidney function, and blood chemistry occurring within about a year of the final menstrual period.
• Menopausal hormone therapy (MHT) was associated with less drastic bodily changes in several systems, particularly bone, liver, and kidney health, although the findings are observational and require further clinical trials for confirmation.
• The study emphasizes the importance of healthy lifestyle habits before menopause and consulting physicians about risk factors for bone, heart, or liver disease, while cautioning that MHT is not suitable for all women, especially those with certain cancers or blood clot risks.
• Published in Nature Medicine, the study suggests menopause is a distinct, abrupt physiological event rather than a gradual aging process, with potential implications for prevention and treatment strategies.