Fatty plaque (shown here in yellow) blocks about 60 percent of this coronary artery's width. The increasing thickness of artery walls is just one factor that can increase vulnerability to a heart attack or stroke. Prof. P.M. Motta/G. Macchiarelli, S.A. Nottola/Science Source hide caption

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Possible Heart Benefits Of Taking Estrogen Get Another Look
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Hormones May Help Younger Women With Menopause Symptoms
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Hormones clearly influence a women's health, but figuring out how is a tricky business. Andrew Ostrovsky/iStockphoto.com hide caption

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Once hailed as a feminine fountain of youth, then vilified, hormone replacement therapy may finally be finding its place as a short-term treatment for menopause symptoms. iStockphoto.com hide caption

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