Episode 470: The Science of Romantic Obsession

January 27, 2026 by Justin Lehmiller

Sex and Psychology Podcast
Sex and Psychology Podcast
Episode 470: The Science of Romantic Obsession
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Have you ever been unable to stop thinking about someone? They’re the first thing on your mind when you wake up and the last before you fall asleep. When they text, you’re ecstatic. When they don’t, you feel deflated. That experience has a name: limerence. In this episode, we unpack what it is, where it comes from, and why the brain can become so powerfully attached to another person.

My guest is Dr. Tom Bellamy, a neuroscientist and honorary Associate Professor at the University of Nottingham. He has published over forty scientific works on neurophysiology. He runs the popular blog Living with Limerence and is author of the new book Smitten: Romantic Obsession, the Neuroscience of Limerence, and How to Make Love Last.

Some of the specific topics we explore include:

  • How is limerence different from lust and love?
  • What happens in the brain during limerence?
  • Why does uncertainty fuel romantic obsession?
  • Is modern dating making limerence more common?
  • What emotional needs or life circumstances make someone more vulnerable to limerence?

You can check out Tom’s website to learn more about his work.

Got a sex question? Send me a podcast voicemail to have it answered on a future episode at speakpipe.com/sexandpsychology.

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Credits: Precision Podcasting (Podcast editing) and Shutterstock/Florian (Music). Image created with Canva; photos used with permission of guest.

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Written by
Dr. Justin Lehmiller
Founder & Owner of Sex and Psychology

Dr. Justin Lehmiller is a social psychologist and Research Fellow at The Kinsey Institute. He runs the Sex and Psychology blog and podcast and is author of the popular book Tell Me What You Want. Dr. Lehmiller is an award-winning educator, and a prolific researcher who has published more than 50 academic works.

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