Helen Fisher Quotes
Saliva has testosterone and estrogen. When you kiss, you're having a chemical experience.
Citations
Fisher, Helen. Why We Love: The Nature and Chemistry of Romantic Love. Henry Holt and Company, 2004.
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Helen Fisher is an American anthropologist, human behavior researcher, and self-help author. She is a biological anthropologist, is a senior research fellow, at The Kinsey Institute, Indiana University, and a member of the Center For Human Evolutionary Studies in the Department of Anthropology at Rutgers University. Prior to Rutgers University, she was a research associate at the American Museum of Natural History in New York City.