Among the many firsts we experience in our lives, a first kiss is one of the most memorable.
In addition to being a novel experience, our brains receive pleasure and information from kissing. Our lips are the most exposed erogenous zones on our bodies, and a good, consensual kiss triggers hormones that give us a rush of desire and love.
Science communicator talks with host Anita Rao about these physical effects of a kiss and how they help us measure compatibility with a potential partner. She also describes the cultural history of kissing, including how locking lips has enforced power structures and how kissing is interpreted differently around the world, all topics discussed in her book .
, a photographer, director and filmmaker based in New York City, also joins the conversation to share the inspiration behind his photo series . Kadar photographs moments of kissing and intimacy between Black and brown queer folks in public and at home, exploring what this kind of connection looks like through his work.
Anita also talks about the cultural milestone of a first kiss with a group of current and former 耳科利利嫋 youth reporters. High school students Parys Smith and Donna Diaz, along with college student Chris Williams, share the stories of their first kiss, how they think about boundaries and what constitutes a good kiss.
Thank you to Caroline, Jeanine, Caitlin, Kristin, Lawrence and Steven for sharing with us for this episode!
Please note: This episode originally aired May 26, 2023.
Remembering the First Kiss
How Old Were You?

We gathered together stories of first kisses from our listeners, guests, and colleagues and we had such a wide range of experiences!
What Was that First Kiss Like?

Whos surprised that the most common adjective is awkward?
What Can a First Kiss Teach Us? (from former/current 耳科利利嫋 youth reporters)
My first kiss, there were no boundaries. And even though I was young, it made me very strong, in like, what I want and not letting people come into my space.
-Parys Smith
There doesn't need to be tongue all that, like, it can just be sweet for a couple seconds.
-Chris Williams
It has to be the right moment. Kissing in general, I think it should just be energy
-Donna Diaz
Why Do We Remember Our First Kisses So Well?
Novel experiences can spike all sorts of different neurotransmitters and hormones in our bodies But we're using that kiss to tell us more about the situation, how we're feeling: Are we comfortable? Are we stressed? So that memory is powerful.
-Sheril Kirshenbaum, author of The Science of Kissing