A mural in an ancient tomb in China shows a troupe of eunuchs. How long did they live? Wikimedia Commons hide caption

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Eating foods high in saturated fat may increase fertility problems in men, a preliminary study finds. Robert Byron/iStockphoto.com hide caption

itoggle caption Robert Byron/iStockphoto.com

A study finds that drinking at least six cups a day of coffee reduces the risk of aggressive prostate cancer by 60 percent. Francois Guillot/AFP/Getty Images hide caption

itoggle caption Francois Guillot/AFP/Getty Images