New research could be promising for infertile men. Scientists were able to make immature sperm cells from skin cells. Their next challenge is to make that sperm viable. iStockphoto hide caption

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iStockphoto

'Provocative' Research Turns Skin Cells Into Sperm

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Doctors use tissue slides like this one of the ovary's outer cortex to confirm a woman's ovarian reserve. It's also the the ovary tissue that's removed in an ovarian transplant. Courtesy of the Infertility Center of St. Louis hide caption

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Courtesy of the Infertility Center of St. Louis

Chance To Pause Biological Clock With Ovarian Transplant Stirs Debate

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Human embryos under a microscope at an IVF clinic in La Jolla, Calif. Sandy Huffaker/Getty Images hide caption

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Sandy Huffaker/Getty Images

Freezing Eggs To Make Babies Later Moves Toward Mainstream

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