Copyright 2018 NPR. To see more, visit ROBERT SIEGEL, HOST: We begin this next item with the question, what is it that makes you you? A person's personality and potential can be tricky things to pinpoint and measure. On today's Morning Edition, NPR's Shankar Vedantam looked at the world of personality testing and what these tests can and cannot tell us about ourselves. And now he explores new research that asks another question - can the ways we categorize people affect not just who they are now, but who they'll become in the future? SHANKAR VEDANTAM, BYLINE: Our story begins in Anhui province in China in 1987. A young Chinese couple, Xiaoqi and Youngsheng, were ready to start a family. The timing was right. It was soon going to be 1988, a most significant year in the Chinese zodiac. After 11 years of rats and roosters and snakes and sheep, it was finally going to be the year of the dragon. (SOUNDBITE OF DRUMS) VEDANTAM: According to Chinese tradition, there's no better year for a
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