Manic, sad, up, down. Your voice may reveal mood shifts. iStockphoto hide caption

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The vast majority of young physicians surveyed by Stanford researchers wouldn't want to receive CPR or cardiac life support if they were terminally ill and their heart or breathing stopped. UygarGeographic/iStockphoto hide caption

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Cornell University in Ithaca, N.Y., says having Medicaid pay for some students' coverage through the school health plan will give those students better options. Alex/Flickr hide caption

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Noah Cummings, 13, starts the morning with his mom, Heather Cummings, at home in Epsom, N.H. Ellen Webber for NPR hide caption

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Dr. Lisa Sterman held a Truvada pill at her office in San Francisco in 2012. She prescribed Truvada to patients at high risk for HIV infection even before the Food and Drug Administration approved the medicine explicitly for that purpose. Jeff Chiu/AP hide caption

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Work can be rough, but a researcher has found that for many people, being at home is more stressful than being at the office. iStockphoto hide caption

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Two cervical cancer cells divide in this image from a scanning electron microscope. Steve Gschmeissner/Getty Images/Science Photo Libra hide caption

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