# What happens in our brains and bodies when we fall in love

An episode of [Instant Genius](https://invisiblenetwork.ai/podcast/1296673906), 9 Feb 2026, 41 min.

Audio: https://traffic.megaphone.fm/NSR9675449118.mp3?updated=1770395181

The chances are that if any of us were asked to describe what it feels like to be in love we’d turn to art, poetry or music to help give us the answer. But what does science have to say about this uniquely human experience? In this episode, we’re joined by Dr Justin Garcia, an evolutionary biologist and sex researcher based at the Kinsey Institute in the US, to talk about his book, The Intimate Animal: The Science of Love, Fidelity and Connection He tells us how the evolutionary history of human pair bonding led to the development of our feelings of love, how and why we seek certain characteristics in our romantic partners, and how our attitude to relationships has altered due to changes in thinking, culture, and technology. Learn more about your ad choices. Visit podcastchoices.com/adchoices

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