The science behind polyamory

多角恋背后的科学

Science Quickly

2026-02-25

15 分钟
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In this episode of Science Quickly, we explore what research reveals about polyamory, how multipartner relationships actually function and why communication and consent are central to making them work. Anthropologist Rebecca J. Lester helps break down common myths, highlight the ethics at the core of polyamory and shares insights that can strengthen any relationship—monogamous or otherwise. Recommended Reading: The truth about polyamory New Sexual Revolution: Polyamory May Be Good for You How often do people fall passionately in love? The answer may be less than you think E-mail us at sciencequickly@sciam.com if you have any questions, comments or ideas for stories we should cover! Discover something new everyday: subscribe to Scientific American and sign up for Today in Science, our daily newsletter. Science Quickly is produced by Kendra Pierre-Louis, Fonda Mwangi, Sushmita Pathak and Jeff DelViscio. This episode was edited by Alex Sugiura, with fact-checking by Shayna Posses and Aaron Shattuck. Our theme music was composed by Dominic Smith. Learn more about your ad choices. Visit megaphone.fm/adchoices
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  • For Scientific American Science Quickly, I'm Kendra Peer Lewis in for Rachel Feldman.

  • For many of us, our mental picture of romantic love is a couple.

  • After all a firmly monogamous relationship between two people, ideally married,

  • as often portrayed in popular culture as hashtag goals,

  • and to some degree that is reflected in American attitudes.

  • A 2023 YouGov survey, for example,

  • found that 55% of Americans preferred some form of fully monogamous relationship.

  • And yet,

  • that same poll found that roughly a third of Americans were interested in relationships that were something other than full monogamy.

  • In fact, one in eight Americans said that with their primary partner's permission,

  • they had engaged in sexual acts with someone other than that partner.

  • But for many of us,

  • our understanding of non-monogamous relationships, especially polyamorous relationships,

  • where people have multiple romantic relationships at the same time, remains murky.

  • I talked with Rebecca Luster, a professor of anthropology at Washington University in St.

  • Louis and a licensed clinical social worker who recently wrote about polyamory in the March issue of Scientific American to shed some light on the topic.

  • Hi, Rebecca.

  • Thanks for taking the time to join us today.

  • I'm happy to be here.

  • How did you get interested in the subject of polyamory?