A study of analysis provided by the U.S. Women's Health Initiative concludes hormones for women with menopause in their 50s do not increase the risk of a heart attack. The finding, to be published in today's Journal of the American Medical Association, says the timing of therapy is the important issue, because hormones do increase the risk for women still experiencing menopausal symptoms in their 60s and 70s. But the NIH official who leads the WHI work urged caution in interpreting the study's results.

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