Book: Us and Them, by David Berreby

A book by David Berreby:
Us and Them: The Science of Identityalt – Second edition with a new preface (University of Chicago Press 2005, 2008)

As human beings we sort ourselves into groups. And once we identify ourselves as a member of a particular altalt group—say, Red Sox fans—we tend to feel more comfortable with others of our own kind, rather than, say, Yankees fans. Yet we all belong to multiple groups at the same time—one might be a woman, a mother, an American, a violinist. How do we decide which identities matter and why they matter so much? And what makes us willing to die for, or to kill for, a religion, a nation, or a race?
In this award-winning book, David Berreby describes how twenty-first-century science is addressing these age-old questions. Ably linking neuroscience, social psychology, anthropology, and other fields, Us and Them investigates humanity’s “tribal mind” and how this alters our thoughts, affects our health, and is manipulated for good and ill. From the medical effects of stress to the rhetoric of politics, our perceptions of group identity affect every part of our lives. Science, Berreby argues, shows how this part of human nature is both unexpectedly important and surprisingly misunderstood.

See also:
– An interesting online conversation between David Berreby and John Horgan on "Tribes and Prejudices" at
– David's blog Us and Them


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