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Sex and Psychology Podcast

Dr. Justin Lehmiller
Sex and Psychology Podcast
Latest episode

533 episodes

  • Sex and Psychology Podcast

    Episode 533: A Beginner's Guide To Swinging

    04/09/2026 | 36 mins.
    For some couples, swinging can be a way to bring novelty, excitement, and sexual exploration into their relationship. But opening the door to new experiences can also bring new challenges, from jealousy and boundary-setting to navigating differences in what each partner wants. So why do couples decide to swing, what does it actually look like in practice, and what separates a positive experience from one that creates conflict? In this episode, we’re taking a deep dive into swinging and what it takes to make it work.
    I am joined once again by Dr. Stephanie Sigler, a licensed professional counselor, certified sex therapist, clinical sexologist, author, educator, and founder of Evolve Your Intimacy. She specializes in helping individuals and couples navigate relationships, intimacy, attachment, trauma, and sexual wellness. She is the author of The Clinician's Guide to Ethical Non-Monogamous Relationships, and host of the Evolve Your Intimacy Podcast.
    Some of the specific topics we cover include:
    What distinguishes a swinging relationship from other forms of consensual non-monogamy?
    What are some of the different forms swinging can take?
    What are some or the most common challenges couples face when they begin swinging?
    How should couples approach initial conversations about swinging if they've never tried it before?
    When partners aren't equally interested in swinging or their interests change, what should you do?
    You can check out Stephanie's website and follow her on Instagram @evolve_your_intimacy to learn more.
    Got a sex question? Send me a podcast voicemail to have it answered on a future episode at speakpipe.com/sexandpsychology.
    ***
    Thank you to our sponsors! 
    If you’re 21 or older, get 30% OFF your first order with IndaCloud with code JUSTIN at https://indacloud.co #indacloudpod
    Attached Therapy offers personalized therapy for individuals and couples navigating infidelity, sexual disconnection, relationship strain, and other complex intimacy concerns. Founder Jason Powell, LMFT and AASECT Certified Sex Therapist, offers in-person sessions in Manhattan and Brooklyn Heights, as well as virtual therapy in multiple states. Learn more at https://www.attachedtherapy.com/
    Passionate about building a career in sexuality? Check out the Sexual Health Alliance. With SHA, you’ll connect with world-class experts and join an engaged community of sexuality professionals from around the world. Visit SexualHealthAlliance.com and start building the sexuality career of your dreams today.
    ***
    Want to learn more about Sex and Psychology? Click here for previous articles or follow the blog on Facebook, Twitter, or Bluesky to receive updates. You can also follow Dr. Lehmiller on YouTube and Instagram.
    Listen and stream all episodes on Apple, Spotify, or Amazon. Subscribe to automatically receive new episodes and please rate and review the podcast!
    Credits: Precision Podcasting (Podcast editing) and Shutterstock/Florian (Music). Image created with Canva; photos used with permission of guest.
  • Sex and Psychology Podcast

    Episode 532: Why Jealousy Isn't The Problem

    01/09/2026 | 33 mins.
    Jealousy is one of the most complicated—and misunderstood—emotions we experience in intimate relationships. We tend to think of jealousy as inherently unhealthy, something we should suppress, overcome, or eliminate altogether. But what if jealousy itself isn’t actually the problem? In this episode, we explore what jealousy is really trying to tell us, why attempts to get rid of it can sometimes backfire, and how we can learn to respond to it in healthier ways.
    My guest is Dr. Stephanie Sigler, a licensed professional counselor, certified sex therapist, clinical sexologist, author, educator, and founder of Evolve Your Intimacy. She specializes in helping individuals and couples navigate relationships, intimacy, attachment, trauma, and sexual wellness. She is the author of The Clinician's Guide to Ethical Non-Monogamous Relationships, and host of the Evolve Your Intimacy Podcast.
    Some of the specific topics we cover include:
    Why is jealousy so misunderstood in relationships?
    How can separating jealousy from envy or insecurity help us respond more effectively?
    How do attachment styles shape the way we experience jealousy?
    What can monogamous couples learn about jealousy from non-monogamous relationships?
    What does a healthy conversation about jealousy actually look like?
    You can check Stephanie's website and follow her on Instagram @evolve_your_intimacy to learn more.
    Got a sex question? Send me a podcast voicemail to have it answered on a future episode at speakpipe.com/sexandpsychology.
    ***
    Thank you to our sponsors! 
    If you’re 21 or older, get 30% OFF your first order with IndaCloud with code JUSTIN at https://indacloud.co #indacloudpod
    If you're looking to gain a broad understanding of human sexuality or refresh your knowledge, check out the upcoming Human Sexuality Intensive courses at the Kinsey Institute: https://kinseyinstitute.org/learning/human-sexuality-intensive.html 
    ***
    Want to learn more about Sex and Psychology? Click here for previous articles or follow the blog on Facebook, Twitter, or Bluesky to receive updates. You can also follow Dr. Lehmiller on YouTube and Instagram.
    Listen and stream all episodes on Apple, Spotify, or Amazon. Subscribe to automatically receive new episodes and please rate and review the podcast!
    Credits: Precision Podcasting (Podcast editing) and Shutterstock/Florian (Music). Image created with Canva; photos used with permission of guest.
  • Sex and Psychology Podcast

    Episode 531: Do Dads Get Postpartum Depression, Too?

    28/08/2026 | 29 mins.
    Becoming a father doesn’t just change a man’s brain. It can also change his sense of identity, his mental health, and his relationships. Fatherhood can bring profound meaning and connection, but it can also introduce new sources of stress, vulnerability, and conflict that we don’t always talk about. So how does becoming a dad change men psychologically? And what do men stand to gain from being more deeply involved in parenting?
    I am joined once again by Darby Saxbe, a clinical psychologist and tenured full professor of psychology at the University of Southern California. She has published over eighty scientific articles in peer-reviewed journals. Her research focuses on the transition to parenthood, particularly the neural and hormonal underpinnings of fatherhood. Her latest book is titled Dad Brain: The New Science of Fatherhood and How It Shapes Men’s Lives.
    Some of the specific topics we cover include:
    How does becoming a dad transform men psychologically?
    How common are mental health struggles among new fathers?
    Why is becoming a parent so challenging for couples?
    How can engaged fatherhood improve men’s health?
    You can visit Darby's website to learn more about Dad Brain and follow her on Instagram @darbysaxbephd
    Got a sex question? Send me a podcast voicemail to have it answered on a future episode at speakpipe.com/sexandpsychology.
    ***
    Thank you to our sponsors! 
    Born from over 10 years of longevity research, OneSkin is helping you unlock your healthiest skin now and as you age. Get 15% off OneSkin with the code JUSTIN at https://www.oneskin.co/justin
    Attached Therapy offers personalized therapy for individuals and couples navigating infidelity, sexual disconnection, relationship strain, and other complex intimacy concerns. Founder Jason Powell, LMFT and AASECT Certified Sex Therapist, offers in-person sessions in Manhattan and Brooklyn Heights, as well as virtual therapy in multiple states. Learn more at https://www.attachedtherapy.com/
    Passionate about building a career in sexuality? Check out the Sexual Health Alliance. With SHA, you’ll connect with world-class experts and join an engaged community of sexuality professionals from around the world. Visit SexualHealthAlliance.com and start building the sexuality career of your dreams today.
    ***
    Want to learn more about Sex and Psychology? Click here for previous articles or follow the blog on Facebook, Twitter, or Bluesky to receive updates. You can also follow Dr. Lehmiller on YouTube and Instagram.
    Listen and stream all episodes on Apple, Spotify, or Amazon. Subscribe to automatically receive new episodes and please rate and review the podcast!
    Credits: Precision Podcasting (Podcast editing) and Shutterstock/Florian (Music). Image created with Canva; photos used with permission of guest.
  • Sex and Psychology Podcast

    Episode 530: The Surprising Science Of The Dad Brain

    25/08/2026 | 33 mins.
    Becoming a parent changes just about every aspect of life. But it doesn’t just change your routines, priorities, and relationships—it can actually change your brain and body. And while we’ve long recognized the profound biological transformation that accompanies motherhood, we’re only beginning to understand what happens to men when they become fathers. So what exactly is a “dad brain?” How does fatherhood reshape the male brain, hormones, and even the body?
    My guest is Darby Saxbe, a clinical psychologist and tenured full professor of psychology at the University of Southern California. She has published over eighty scientific articles in peer-reviewed journals. Her research focuses on the transition to parenthood, particularly the neural and hormonal underpinnings of fatherhood. Her latest book is titled Dad Brain: The New Science of Fatherhood and How It Shapes Men’s Lives.
    Some of the specific topics we cover include:
    How (and why) does becoming a parent change the brain?
    How similar are “dad brain” and “mom brain?"
    What happens to testosterone when men become fathers?
    Is there a biological reason for the "dad bod?"
    You can visit Darby's website to learn more about Dad Brain and follow her on Instagram @darbysaxbephd
    Got a sex question? Send me a podcast voicemail to have it answered on a future episode at speakpipe.com/sexandpsychology.
    ***
    Thank you to our sponsors! 
    Cozy Earth’s Labor Day Sale is happening now through September 8th. Head to cozyearth.com and use my code JUSTIN for an exclusive 30% off, the biggest savings of the season. And if you see a post-purchase survey, mention that you heard about Cozy Earth right here!
    Born from over 10 years of longevity research, OneSkin is helping you unlock your healthiest skin now and as you age. Get 15% off OneSkin with the code JUSTIN at https://www.oneskin.co/justin
    The Kinsey Institute is where the world turns to understand sex and relationships. You can help continue its expert-led research by donating to the Kinsey Institute Research Fund. Learn more and make a donation here: https://give.myiu.org/centers-institutes/I380010749.html 
    ***
    Want to learn more about Sex and Psychology? Click here for previous articles or follow the blog on Facebook, Twitter, or Bluesky to receive updates. You can also follow Dr. Lehmiller on YouTube and Instagram.
    Listen and stream all episodes on Apple, Spotify, or Amazon. Subscribe to automatically receive new episodes and please rate and review the podcast!
    Credits: Precision Podcasting (Podcast editing) and Shutterstock/Florian (Music). Image created with Canva; photos used with permission of guest.
  • Sex and Psychology Podcast

    Episode 529: The Menopause Revolution Is Here

    21/08/2026 | 45 mins.
    Menopause is finally getting the attention it deserves, with growing recognition of its impact on sexual health, relationships, work, and quality of life. At the center of this conversation is hormone therapy, which has been surrounded by fear and confusion since the Women’s Health Initiative study in the early 2000s, which dramatically changed how it was perceived and prescribed. Today, scientists are revisiting that history as a new generation pushes for better information, better care, and greater choice in managing menopause.
    My guest is Alicia Rose, an award-winning director and the Founder of Menopunks—a documentary, podcast, and activist movement championing hormonal education, access, and reproductive justice. A prolific filmmaker with deep roots as both a musician and indie music industry leader, she has directed more than three dozen music videos for global artists.
    Some of the specific topics we cover include:
    What have women missed out on due to fears about hormone therapy?
    Why is menopause often left out of conversations about bodily autonomy and reproductive justice?
    What’s driving the recent surge in attention to menopause?
    Beyond sexual function, how does menopause affect women's lives?
    You can check out the Menopunks website to learn more about Alicia's work.
    Got a sex question? Send me a podcast voicemail to have it answered on a future episode at speakpipe.com/sexandpsychology.
    ***
    Thank you to our sponsors! 
    Passionate about building a career in sexuality? Check out the Sexual Health Alliance. With SHA, you’ll connect with world-class experts and join an engaged community of sexuality professionals from around the world. Visit SexualHealthAlliance.com and start building the sexuality career of your dreams today.
    If you're ready to ditch the shady stuff and choose a libido supplement that’s effective and that you can feel confident about, it's time to check out Soaking Wet. Visit vb.health and use code JUSTIN for 10% off. 
    ***
    Want to learn more about Sex and Psychology? Click here for previous articles or follow the blog on Facebook, Twitter, or Bluesky to receive updates. You can also follow Dr. Lehmiller on YouTube and Instagram.
    Listen and stream all episodes on Apple, Spotify, or Amazon. Subscribe to automatically receive new episodes and please rate and review the podcast!
    Credits: Precision Podcasting (Podcast editing) and Shutterstock/Florian (Music). Image created with Canva; photos used with permission of guest.
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About Sex and Psychology Podcast
The Sex and Psychology Podcast is the sex ed you never got in school—and won’t find anywhere else. Kinsey Institute researcher Dr. Justin Lehmiller takes you on a journey through the psychology of sex and relationships, offering practical tips along the way that can help you take your intimate life to the next level. Learn more on Dr. Lehmiller’s blog at sexandpsychology.com
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