Episode 480: The Evolution Of Love And Desire

Why do we fall in and out of love so quickly? Why does love feel intoxicating at first, but complicated over time? The answer may be simpler than we think: humans are animals. Our brains were shaped by ancient mating systems that developed long before dating apps and modern culture. So what does it mean to be an “intimate animal?” And how much of our love lives today are still being driven by our evolutionary past? My guest is Dr. Justin Garcia , evolutionary biologist and Executive Director of the Kinsey Institute at Indiana University . He is the chief scientific advisor for Match, and author of the new book The Intimate Animal: The Science of Sex, Fidelity, And Why We Live and Die For Love. Some of the specific topics we explore in this episode include: What makes intimacy such a defining part of our species? Are humans built for monogamy or non-monogamy? What happens inside the brain when we fall in love with someone? Why does navigating sex and relationships in the modern world feel so challenging? To learn more about Dr. Garcia, follow @drjustingarcia on the socials. Got a sex question? Send me a podcast voicemail to have it answered on a future episode at speakpipe.com/sexandpsychology. *** Thank you to our sponsors! If you’re ready to ditch the shady stuff and choose a libido supplement that’s effective and that you can feel confident about, it’s time to check out Drive Boost. Visit vb.health and use code JUSTIN for 10% off. Passionate about building a career in sexuality? Check out the Sexual Health Alliance. With SHA, you’ll connect with world-class experts and join an engaged community of sexuality professionals from around the world. Visit SexualHealthAlliance.com and start building the sexuality career of your dreams today. *** Want to learn more about Sex and Psychology? Click here for previous articles or follow the blog on Facebook , Twitter , or Bluesky to receive updates. You can also follow Dr. Lehmiller on YouTube and Instagram . Listen and stream all episodes on Apple , Spotify , or Amazon .

You can listen to Episode 480: The Evolution Of Love And Desire online on Radio and Podcast. Open the player on this page to stream the available audio.

Episode 480: The Evolution Of Love And Desire is an episode from Sex and Psychology Podcast by Dr. Justin Lehmiller.

This episode is 29:44 long.

This episode was published on Mar 3, 2026.

Yes. Use the heart button on the episode page to add it to your favorite episodes list.

Yes. This page shows related episodes from Sex and Psychology Podcast when more episodes are available from the podcast feed.