Masturbation May and the Science of Self-Pleasure

May 2, 2022 by Justin Lehmiller

It’s May, and that means it’s Masturbation Month yet again! So let’s talk about self-pleasure. The origins of Masturbation Month date back to 1995, when US Surgeon General Joycelyn Elders publicly said that masturbation is a natural part of human sexuality and something that should perhaps be taught in sex education courses. Elders’ comments set...

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Masturbation May and the Science of Self-Pleasure
Holiday Horniness, Explained
Holiday Horniness, Explained

December 24, 2021 by Justin Lehmiller

Unlike many animal species, humans don’t really have a mating season. We can have sex any time of year. However, there do appear to be some peaks and valleys in...

Videos
Lessons From A 107-Year-Old Sex Therapist
Lessons From A 107-Year-Old Sex Therapist

December 13, 2021 by Justin Lehmiller

Sex therapist Dr. Shirley Zussman passed away on December 4, 2021 at the age of 107. She had a remarkably long career in the field, having earned her doctorate in...

Sex Ed, Videos
Why Noisy Sex Is Often Better Sex
Why Noisy Sex Is Often Better Sex

September 27, 2021 by Justin Lehmiller

What does it sound like when you have sex? Is there any dirty talk? What about panting, moaning, and/or grunting? While people vary in their personal preferences for erotic sounds...

Videos
How COVID-19 Changed the Sex Work Industry
How COVID-19 Changed the Sex Work Industry

July 14, 2021 by Justin Lehmiller

The COVID-19 pandemic has impacted people’s sex lives in a number of ways, which I’ve written about extensively on the blog (see here for a video recap of some of...

Videos
What You Do After Sex Matters
What You Do After Sex Matters

June 16, 2021 by Justin Lehmiller

What do you do after sex? Some people like to spoon or cuddle, others like to sleep, and yet others like to grab something to eat or drink. But does...

Videos
Could STIs Manipulate Us Into Having More Sex To Increase Disease Spread?
Could STIs Manipulate Us Into Having More Sex To Increase Disease Spread?

February 22, 2021 by Justin Lehmiller

Most of us like to think of ourselves as having free will. We engage in behaviors—sexually and otherwise—because we choose to do so, right? But what if this wasn't entirely...

Safe Sex, Sex Ed, Videos
The State of Unclear Relationships: Ghosting, Icing, and Simmering
The State of Unclear Relationships: Ghosting, Icing, and Simmering

January 4, 2021 by Justin Lehmiller

The rise of online dating has given us a new way to connect with other people—and to meet people we probably wouldn’t otherwise encounter in our everyday lives. It has...

Videos
Infidelity is Often About Far More Than Just Sex
Infidelity is Often About Far More Than Just Sex

December 14, 2020 by Justin Lehmiller

It’s not uncommon for people in monogamous relationships to step out on their partners. Studies have reliably found that between 1 in 4 and 1 in 5 married individuals say...

Videos
Why You Shouldn’t Give Up Masturbation During the Pandemic
Why You Shouldn’t Give Up Masturbation During the Pandemic

November 18, 2020 by Justin Lehmiller

A few years back, a bunch of guys on the internet started challenging each other to go the whole month of November without ejaculating. It’s “No Nut November,” as they...

Videos
How COVID-19 is Changing Sex and Relationships (Video)
How COVID-19 is Changing Sex and Relationships (Video)

November 13, 2020 by Justin Lehmiller

How have people's sex lives and relationships changed as a result of the COVID-19 pandemic? Some of my colleagues and I at The Kinsey Institute conducted a study in order...

Videos
Women’s Masturbation Habits May Be More Nuanced Than Men’s
Women’s Masturbation Habits May Be More Nuanced Than Men’s

October 30, 2020 by Justin Lehmiller

Some women masturbate right after having sex with their partner. Intuitively, some might assume that this necessarily means she was dissatisfied with the sex and compensating for an unfulfilling experience....

Gender, Videos
Things You Probably Never Knew About Penises
Things You Probably Never Knew About Penises

October 14, 2020 by Justin Lehmiller

What is the average amount of semen a man produces? Where does semen actually come from anyway? Why do men ejaculate in spurts instead of a stream? Why is semen...

Videos
The Psychology of Pup Play
The Psychology of Pup Play

September 23, 2020 by Justin Lehmiller

“Pup play” is a form of sexual roleplay in which an adult human adopts the appearance and characteristics of a dog. This may include dressing up like a dog (wearing...

Kink & BDSM, Videos
Who You Meet Matters More Than What You Want: The Economics of Love
Who You Meet Matters More Than What You Want: The Economics of Love

September 11, 2020 by Justin Lehmiller

A lot of people struggle when it comes to finding long-term relationship happiness. So what can we do about this? As economist Rebekka Grun argues in the TEDx talk below,...

Videos
Disasters Like the COVID-19 Pandemic are a “Relationship Accelerator”
Disasters Like the COVID-19 Pandemic are a “Relationship Accelerator”

August 3, 2020 by Justin Lehmiller

How is the COVID-19 pandemic affecting the world of dating and relationships? According to sex therapist Esther Perel, disasters like this are a “relationship accelerator.” What exactly does she mean...

Videos

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