Despite a desire for government services, Americans in a new poll were clearly dissatisfied with the level of service they feel they receive. Getty Images hide caption

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A group at MIT built this tiny package of sensors to collect vital signs as it travels through the digestive system. Albert Swiston/MIT hide caption

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People who drank three to five cups of coffee per day had a lower risk of premature death than those who didn't drink, a new study finds. iStockphoto hide caption

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An image from the Allen Institute's Brain Explorer shows gene expression across the human brain. Courtesy of Allen Institute For Brain Science hide caption

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Kate Teague, a registered nurse at Lucile Packard Children's Hospital, in Palo Alto, Calif., holds a premature baby's hand. Heidi de Marco/Kaiser Health News hide caption

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Omar looks through Kai's photo book. The charges for the infant's six months of care in the neonatal intensive care unit totaled about $11 million, according to the family, though their insurer very likely negotiated a lower rate. Heidi de Marco/KHN hide caption

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Researchers at Brown University's computer science department are studying whether a robot called Baxter can be taught to pick up different objects. Joe Palca/NPR hide caption

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A hollow log hive in the Cevennes region of France reveals the details of circular comb architecture of the Western honeybee. New research shows the partnership between humans and bees goes back to the beginnings of agriculture. Eric Tourneret/Nature hide caption

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Birth control pills are 99 percent effective in preventing pregnancy, research shows — but only if you remember to take them as prescribed. Rod-shaped implants, T-shaped IUDs and vaginal rings are other options. BSIP/Science Source hide caption

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At 72, Robert McSherry says he's not yet ready to quit driving or ready to plan how he'll get around when that time arrives. But he's happy to get the insurance discount that comes with taking a driver safety class. John Daley/Colorado Public Radio hide caption

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Physical exercise, diet and supportive counseling are the first steps of any weight-loss program. But sometimes that's not enough to take large amounts of weight off, and keep it off, doctors say. 13/Ocean/Corbis hide caption

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Human stem cells, in this case made from adult skin cells, can give rise to any sort of human cell. Some scientists would like to insert such cells into nonhuman, animal embryos, in hopes of one day growing human organs for transplantation. Science Source hide caption

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