Dr. Justin Lehmiller received his Ph.D. in Social Psychology from Purdue University. He is a Research Fellow at The Kinsey Institute and author of the book Tell Me What You Want: The Science of Sexual Desire and How It Can Help You Improve Your Sex Life. Dr. Lehmiller is an award-winning educator, having been honored three times with the Certificate of Teaching Excellence from Harvard University, where he taught for several years.
August 19, 2026 by Emily Mendelson
When we think about the purpose of sexual consent, especially affirmative consent, we tend to think of it as something that prevents violence. Indeed, the purpose of sexual consent — an unencumbered and uncoerced communicative expression of someone’s willingness to engage in sexual activity — is to ensure sexual activity only takes place when everyone...
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August 16, 2026 by Justin Lehmiller
Sex and Psychology was founded with the goal of sharing the science of sex and relationships in a way that is informative, engaging, and accessible. Most of us never received...
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August 12, 2026 by Justin Lehmiller
Think about your exes for a moment. Do they all seem completely different to you, or do they share certain traits? The idea that people have a romantic “type” is...
Dating & Relationships, Myth vs Fact
August 5, 2026 by Emily Mendelson
Originating in Brazil, August 8th is celebrated as International Female Orgasm Day. The purpose of this day is to recognize that women’s orgams—and their overall sexual pleasure—are just as important...
Psychology, Sex Ed
July 30, 2026 by Merissa Prine-Munroe
Did you know that July 31 is National Orgasm Day? For many people, orgasm is treated as the ultimate measure of sexual success. It’s often seen as the line that...
Sex Ed, Sex Tips
July 22, 2026 by Emily Mendelson
Jealousy is among the most common emotional experiences in romantic relationships. Whether it’s your partner liking an ex’s photo, seeing them spend a little too much time with someone who’s...
Dating & Relationships
July 17, 2026 by Merissa Prine-Munroe
Many women worry about whether their genitals look “normal.” Concerns about the size, shape, symmetry, and/or color of the labia can leave women feeling self-conscious and, in some cases, lead...
Sex Ed, Sex Q&A
Discover what the largest survey of sexual fantasies in America tells us about the erotic mind – and how to have a healthier, hotter sex life.
Take a deep dive into the psychology of sex and relationships. This is the sex ed you never got in school – and won’t get anywhere else.
