Helen Fisher On The Brain In Love

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Oh, I would stake all for you.

~WALT WHITMAN

Anthropologist Helen Fisher studies gender differences and the evolution of human emotions. She’s best known as an expert on romantic love, and her beautifully penned books — including Anatomy of Loveand Why We Love: The Nature and Chemistry of Romantic Love— lay bare the mysteries of our most treasured emotion.

She and her colleagues Art Aron and Lucy Brown and others, have put 37 people who are...