Episode
Why Long-Term Love Gets Complicated: A Scientific Approach with Dr. Justin Garcia (291)
- Podcast
- Therapist Uncensored Podcast
- Published
- Feb 17, 2026
- Duration seconds
- 4042
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Summary
What does science actually say about monogamy, desire, and long-term love? Evolutionary biologist Dr. Justin Garcia joins co-host Sue Marriott to deepen our understanding of the myths and realities of modern relationships. From monogamy to consensual non-monogamy, we explore how jealousy and trust function – not as flaws – but as deeply human signals shaped by biology and attachment. Dr. Garcia breaks down how relationships shift over time, especially as we age, and why sexual satisfaction isn’t just about frequency – it’s about novelty, meaning, and connection. We dive into the neuroscience of intimacy, including the roles of dopamine and oxytocin, and revisit the Kinsey scale to better understand the fluidity of sexual orientation. This conversation is a grounded, nuanced look at how passion evolves, and how couples can intentionally cultivate desire, curiosity, and emotional safety over the long haul. “Humans, the most intimate animal, will always live and die for love. Understanding why gives us the power to find and maintain the loves worth living for.” – Dr. Justin Garcia, a quote from The Intimate Animal Time Stamps for Why Long-Term Love Gets Complicated: A Scientific Approach with Dr. Justin Garcia (291) 00:57 Understanding social vs. sexual monogamy 04:32 The evolutionary perspective on relationships 08:26 Jealousy and relationship dynamics 20:25 Sexuality and aging: A new perspective 28:44 The power of eye gaze and oxytocin 30:30 Understanding aggression: Oxytocin and vasopressin dynamics 39:01 Exploring sexual diversity and the Kinsey scale About Our Guest – Dr. Justin Garcia Dr. Justin Garcia is an evolutionary biologist and international authority on the science of sex and relationships. Since 2019, he has served…