Dr. George Papanicolaou discovered that it was possible to detect cancer by inspecting cervical cells. The Pap smear, the cervical cancer screening test, is named after him. American Cancer Society/AP hide caption

itoggle caption American Cancer Society/AP

The U.S. Preventive Services Task Force recommends mammograms every other year, while the American Cancer Society endorses annual scans. Kari Lehr/Image Zoo/Corbis hide caption

itoggle caption Kari Lehr/Image Zoo/Corbis

Catharine Becker of Fullerton, Calif., was diagnosed with stage 3 breast cancer at 43 despite having a clean mammogram. The mother of three didn't know she had dense breast tissue until after she was diagnosed. Heidi de Marco/Kaiser Health News hide caption

itoggle caption Heidi de Marco/Kaiser Health News
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A view of the eastern entrance to the Ohio Statehouse. Bob Hall/Flickr hide caption

itoggle caption Bob Hall/Flickr

The University of Oregon is under fire from students and some employees for turning a student's mental-health records over to its lawyers. Rick Obst/Flickr hide caption

itoggle caption Rick Obst/Flickr

University of Notre Dame contends that the act of signing a form opting out of the Affordable Care Act's birth control mandate makes the school complicit in providing coverage. Getty Images hide caption

itoggle caption Getty Images

Kristen Caminiti cuddles her son Connor while doctors stitch her up following a C-section. Courtesy of Kristen DeBoy Caminiti hide caption

itoggle caption Courtesy of Kristen DeBoy Caminiti

An interauterine device provides long-term birth control. iStockphoto hide caption

itoggle caption iStockphoto

Along with sperm, the in vitro procedure adds fresh mitochondria extracted from less mature cells in the same woman's ovaries. The hope is to revitalize older eggs with these extra "batteries." But the FDA still wants proof that the technique works and is safe. Chris Nickels for NPR hide caption

itoggle caption Chris Nickels for NPR