The science of siblings

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The cover of "The Sibling Effect," by Jeffrey Kluger.
Image courtesy of Penguin Publishing

Siblings can play a powerful role in our lives, and now scientists are learning more than ever about just how much our brothers and sisters impact our behavior.

Author Jeffrey Kluger examines the science and delves into his own childhood to explain why who we are is as much about our siblings as it is about ourselves.

Guest

Jeffrey Kluger, senior editor and writer for Time Magazine. His newest book is "The Sibling Effect."

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