Exercise helps lower stroke risk, but birth control pills and pregnancy can be problematic for younger women. iStockphoto hide caption

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Some people with only slightly elevated blood pressure might be able to relax a bit, if they're doctors go along new treatment guidelines. iStockphoto hide caption

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Not covered by Obamacare, but still sweet. Cristian Baitg/iStockphoto hide caption

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Though some people might need more of specific vitamins, multivitamins don't help most people, studies say. iStockphoto hide caption

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There's more than one reason to aim for a good night's sleep. Charles Taylor/iStockphoto.com hide caption

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A third of Americans have high blood pressure, according to the Centers for Disease Control. Half of them don't have it under control. iStockphoto.com hide caption

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Statin drugs to lower cholesterol have become among the most widely prescribed prescription medications in the United States. Bill Gallery/ASSOCIATED PRESS hide caption

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Angelina Jolie took a genetic test to find out her risk of breast cancer, and had a preventive double mastectomy. Alastair Grant/PA Photos /Landov hide caption

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Aspirin has been prescribed for decades as a simple way to reduce heart disease risk, but doctors still aren't sure how it works. iStockphoto.com hide caption

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The painkiller diclofenac is sold under several brand names in the U.S. and abroad, including Voltaren. Wikimedia Commons hide caption

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The use of multiple blood pressure medications may be helping some Americans bring their hypertension under control. iStockphoto.com hide caption

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