A man walks through hundreds of pairs of shoes displayed in Paris as part of a rally called "Paris sets off for climate" on Sunday, Nov. 29. More than 140 world leaders are gathering around Paris for high-stakes climate talks this week. Laurent Cipriani/AP hide caption

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Laurent Cipriani/AP

What Is Torture? Our Beliefs Depend In Part On Who's Doing It.

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Could a countdown to death help you lead a more ecstatic life? Daniel Horowitz for NPR hide caption

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Daniel Horowitz for NPR

Nothing Focuses The Mind Like The Ultimate Deadline: Death

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People drew maps of body locations where they feel basic emotions (top row) and more complex ones (bottom row). Hot colors show regions that people say are stimulated during the emotion. Cool colors indicate deactivated areas. Image courtesy of Lauri Nummenmaa, Enrico Glerean, Riitta Hari, and Jari Hietanen. hide caption

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Image courtesy of Lauri Nummenmaa, Enrico Glerean, Riitta Hari, and Jari Hietanen.

Kids might be more satisfied if they get one good treat instead of one good treat and one lesser treat. iStockphoto.com hide caption

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Why Are Kids Who Get Less Candy Happier On Halloween?

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What happens when the average person on the street tries to explain a public policy issue? It tends to make them rethink their position. Scott Olson/Getty Images hide caption

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You Can't See It, But You'll Be A Different Person In 10 Years

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People who are interested in and paying close attention to each other begin to speak more alike, a psychologist says. iStockphoto.com hide caption

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To Predict Dating Success, The Secret's In The Pronouns

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