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Seeing double after toasting? Just wait for the hangover that's coming, thanks in part to those bubbles in sparkling wine. Chris Nickels for NPR hide caption

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Chris Nickels for NPR

Want To Avoid A Hangover? Science Has Got You Covered

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Cage-free chickens in a barn near Hershey, Pa., get to roam and perch on steel rods (but they don't go outside). In September, McDonald's said it would buy only cage-free eggs, inspiring several other food companies to follow suit. Dan Charles/NPR hide caption

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Dan Charles/NPR

The upshot from a study of more than 75,000 low-risk births is that "childbirth in the United States is very safe regardless of where you decide to do it," says Dr. Michael Greene, who directs obstetrics at the Massachusetts General Hospital in Boston. Photofusion/UIG via Getty Images hide caption

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Photofusion/UIG via Getty Images

Giving Birth Outside A Hospital Is A Little Riskier For The Baby

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Geneticists found clues to a disease of iron storage in the remains of several Bronze Age inhabitants of what's now Rathlin Island in Northern Ireland. Chrisgel Ryan Cruz/Flickr hide caption

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Chrisgel Ryan Cruz/Flickr

Two cars are submerged in floodwaters in a park in Kimmswick, Mo. Gov. Jay Nixon has declared a state of emergency because of widespread flooding around the state, which has closed many roads. Jeff Roberson/AP hide caption

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Jeff Roberson/AP

Medical workers surround 34-day-old Noubia, the last known patient to contract Ebola in Guinea, as she was released from a Doctors Without Borders treatment center in Conakry on Nov. 28. Cellou Binani /AFP/Getty Images hide caption

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Cellou Binani /AFP/Getty Images

How The Bias Known As Gambler's Fallacy Affects Our Lives

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A young Maya Shankar. Courtesy of Maya Shankar hide caption

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Courtesy of Maya Shankar

Maya Shankar: From Juilliard To The White House

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Editing DNA has never been easier. Pasieka/Science Photo Library/Corbis hide caption

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Pasieka/Science Photo Library/Corbis

Gene Editing Tool Hailed As A Breakthrough, And It Really Is One

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Experts Explain Why 2015 Is A Warm One For Earth's Climate

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Delma and Antonio Salazar have been caring for Delma's mother, Agnes Williams (middle), who has severe memory problems, for the past seven years. Laurel Morales/KJZZ hide caption

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Laurel Morales/KJZZ

Alzheimer's Disease Underdiagnosed In Indian Country

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Dr. Bennet Omalu speaks on stage during the 2015 Health Hero Awards hosted by WebMD on Nov. 5 in New York City. Bryan Bedder/Getty Images hide caption

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Bryan Bedder/Getty Images

Doctor Behind 'Concussion' Wanted To 'Enhance The Lives' Of Football Players

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