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

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Insurers still charge copays for some contraceptives. Laura Garca/iStockphoto hide caption

itoggle caption Laura Garca/iStockphoto

Estrogen affects cells in the eye's retina, which may help explain a possible link between glaucoma and estrogen levels. iStockphoto.com hide caption

itoggle caption iStockphoto.com

The Plan B One-Step morning-after pill will now be available to women as young as 15 without a prescription, and will have another three years of protection from generic competition. AP hide caption

itoggle caption AP

Baltimore Archbishop William Lori gave voice to a letter Catholic groups sent to the administration and Congress to protest insurance rules for contraceptives. Patrick Semansky/AP hide caption

itoggle caption Patrick Semansky/AP

The Hobby Lobby chain of arts and crafts stores has gone to court to block a provision of the administration's health law that requires employers' health plans to pay for contraceptives. Tony Gutierrez/AP hide caption

itoggle caption Tony Gutierrez/AP