
Man Up
- A Doctor's Guide to Men's Health -
Join Dr. Kevin Chu (@kevinchumd) and Dr. Justin Dubin (@justindubinmd) as they speak with specialists across the field on various Men's Health topics.
Latest episodes

Oct 21, 2024 • 58min
Ep 86 - Artificial Intelligence in Medicine - What you need to know
In this episode, hosts Dr. Kevin Chu and Dr. Justin Dubin sit down with Dr. Giovanni Cacciamani, an esteemed associate professor of urology and radiology at the University of Southern California. As the Director and head of the Artificial Intelligence Center for Urological Research, Dr. Cacciamani is at the forefront of integrating AI into medicine.
The conversation explores the current landscape of artificial intelligence in healthcare, addressing common questions and concerns, such as the potential for AI to replace doctors and its implications for patient care. Dr. Cacciamani provides valuable insights into the advancements being made in AI research and how these innovations can enhance medical practice rather than replace human expertise.
Listeners will discover why embracing artificial intelligence is crucial for the future of medicine and how healthcare professionals can adapt to this evolving landscape. The episode also includes a lighthearted discussion about the role of AI in various fields, including the unique intersection of AI and sexual medicine.
Join the doctors as they delve into this timely topic and share their excitement about the future of AI in medicine. Tune in now on Spotify, Apple Podcasts, Amazon, and YouTube!

Oct 7, 2024 • 1h 19min
Ep 85 - T-up: Understanding Testosterone Boosting Supplements
In this episode, hosts Dr. Kevin Chu and Dr. Justin Dubin delve into the world of testosterone-boosting supplements with expert Dr. Geo Espinosa. As patients frequently inquire about these well-known supplements, the conversation aims to clarify their efficacy and whether they can serve as an alternative to traditional testosterone therapy.
Dr. Geo Espinosa, a naturopathic and functional medicine doctor at NYU's Department of Urology, offers invaluable insights into prostate health, penile health, and male testosterone. As the CMO and formulator for XY Wellness and Mr. Happy, he brings a wealth of knowledge to the discussion. Dr. Espinosa is also the co-founder and producer of the popular male health website drgeo.com and the well-received podcast, "The Dr. Geo Podcast."
Dr. Dubin and Dr. Chu draw on their experience in the biohacking and supplement space to discuss the literature surrounding testosterone enhancement. They emphasize that while many individuals aspire to take a natural approach to boost their testosterone levels, it’s important to understand that supplements alone may not achieve therapeutic levels for those diagnosed with hypogonadism. Instead, they focus on the concepts of optimizing and improving testosterone levels through supplementation.
This episode promises to be both informative and engaging, shedding light on the role of supplements in testosterone optimization. Tune in now on Spotify, Apple Podcasts, Amazon, and YouTube.

Sep 23, 2024 • 44min
Ep 84 - Talking blue balls, post-nut clarity, and jelqing - are they real?
In this episode, hosts Dr. Kevin Chu and Dr. Justin Dubin explore the intriguing topics of blue balls, post-nut clarity, and the phenomenon of jelqing. They address common questions and misconceptions surrounding these subjects, providing listeners with a blend of humor and scientific insight.
The hosts delve into the physiology of blue balls, explaining what happens in the body during sexual arousal and why some men experience discomfort when ejaculation does not occur. They also discuss post-nut clarity, a term often used to describe the shift in perspective and emotions that can follow sexual release.
Additionally, the conversation touches on the cultural context of jelqing and its potential implications, emphasizing the importance of approaching the topic with sensitivity and understanding.
Whether you’re curious about the science behind these experiences or simply looking for an engaging discussion about these often-taboo subjects, this episode is for you. Tune in now on Spotify, Apple Podcasts, Amazon, and YouTube.

Sep 9, 2024 • 53min
Ep 83 - Let’s talk about sex - friends with benefits, condom use, fantasy with Dr. Justin Lehmiller
In this episode, hosts Dr. Kevin Chu and Dr. Justin Dubin dive into the world of sexual relationships, exploring topics such as friends with benefits, condom use, and sexual fantasies. They are joined by guest Dr. Justin Lehmiller, who holds a PhD in social psychology from Purdue University and is a research fellow at the Kinsey Institute.
Dr. Lehmiller is the author of "Tell Me What You Want: The Science of Sexual Desire and How It Can Help You Improve Your Sex Life," bringing a wealth of knowledge to the table.
The discussion is lively, addressing common questions and misconceptions about fetishes, including the often-cited foot fetish. The hosts also tackle the dynamics of friends with benefits relationships, discussing what the data reveals about their success and failure.
Whether you’re curious about sexual psychology or looking to spice things up in your love life, you won’t want to miss this conversation. Tune in now on Spotify, Apple Podcasts, Amazon, and YouTube.

Aug 26, 2024 • 56min
Ep 82 - Man Down - Avoiding the Casualties of the Weekend Warrior with Dr. Vonda Wright
In this episode, hosts Dr. Justin Dubin and Kevin Chu are joined by special guest Dr. Vonda Wright, a double board-certified orthopedic sports medicine surgeon.
Dr. Wright specializes in shoulder, hip, and knee arthroscopy for athletes and active people of all ages. She's been featured on The Dr. Oz Show and in publications like The Wall Street Journal and The New York Times for her expertise in helping the "weekend warrior" avoid injuries.
They discuss common injuries like tennis elbow and frozen shoulder, as well as strategies to prevent setbacks when staying active as you get older. They also touch on the potential effects of medications like Ozempic on muscle mass and bone health.
Whether you're trying to optimize your testosterone levels through exercise or just want to keep playing your favorite sports without getting sidelined, this episode is full of practical advice from the experts. Tune in now on Spotify, Apple Podcasts, Amazon, and YouTube.

Aug 12, 2024 • 58min
Ep 81 - Broken Bananah - an interview with a man who broke his penis
In this episode, hosts Dr. Justin Dubin and Dr. Kevin Chu dive into the hilarious yet harrowing story of Ross Asdourian and his real-life experience of breaking his penis. As men's health experts, they unpack the medical realities, social stigmas, and personal impacts of this sensitive and embarrassing injury.
Ross is the author of the book Broken Bananah: Life, Love, and Sex... Without a Penis,” which the doctors highly recommend checking out. He bravely shares the details of his unique experience, including how it impacted his relationships and life as a single guy in New York City in the mid-2000s.
While the concept may seem funny, the doctors emphasize that this type of injury is no laughing matter. They stress the importance of seeking proper medical care, even for sensitive men's health issues that can be embarrassing to discuss.
Whether you're a guy worried about this type of injury or just curious to learn more, this episode is a must-listen. Tune in now on Spotify, Apple Podcasts, Amazon, and YouTube.

Jul 29, 2024 • 48min
Ep 80 - Should we be scared of microplastics?
In this episode, hosts Dr. Justin Dubin and Dr. Kevin Chu dive into the hot topic of microplastics. As men's health experts specializing in areas like testosterone, fertility, and erectile dysfunction, they've been closely following the emerging research on microplastics being found in these key bodily functions.
While the full implications are still unknown, the doctors don't want to be "fear mongers" - there are benefits to plastics too. However, the idea of foreign objects accumulating in parts of the body where they don't belong is certainly concerning.
Justin and Kevin unpack the current state of research, the lingering questions, and the potential impacts this could have going forward. They also share some personal lifestyle adjustments they've made in response. Tune in now on Spotify, Apple Podcasts, Amazon, and YouTube.

Jul 15, 2024 • 39min
Ep 79 - Sex and Mindfulness - Using your mind to be sexually primed
In this episode, hosts Dr. Justin Dubin and Dr. Kevin Chu welcome special guest Keeley Rankin - a sex and relationship coach based in San Francisco with a master's degree in counseling psychology.
Keeley is the co-creator of the Innovative Group Workshop Series "Sex as Meditation", which integrates mindfulness and sex. Throughout the conversation, Keeley's calming, insightful voice guides the discussion on all things mindfulness and sex.
As the hosts note, Keeley's delivery feels "zen-like", almost like an hour of meditation. Yet the conversation remains thought-provoking, encouraging listeners to look inward. They also highlight a key struggle many men face - the inability to be present, especially when it comes to sex and relationships. Keeley shares wisdom on the importance of being in the moment to foster intimacy and connection with a partner.
So whether you're seeking a more mindful approach to sex and relationships, or simply interested in an introspective, calming discussion, this episode is a must-listen. Tune in now on Spotify, Apple Podcasts, Amazon, and YouTube.
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Jul 1, 2024 • 46min
Ep 78 - POV / Perspectives Series - Interview w/ a Brain Tumor Survivor
In this episode, hosts Dr. Justin Dubin and Dr. Kevin Chu bring back the "Perspective Series" and welcome Zach Ground, a remarkable young man who overcame the obstacles of a brain tumor diagnosis.
Zach's story is truly inspiring - despite undergoing significant brain surgery, he went on to not only play college football, but also pursue his passions for mountain biking and other active hobbies most would think impossible after such a major medical event.
They delve into Zach's journey, from the initial diagnosis and hospitalization to his determined recovery and return to an active lifestyle. This episode showcases the power of human resilience and the importance of men's mental health.
Be moved by Zach's perseverance in the face of adversity and find his story relatable and motivating, especially for those going through their own medical challenges. Whether you're seeking an uplifting tale of triumph or simply interested in the medical/personal aspects of Zach's experience, this episode provides a thought-provoking, heartwarming listen. Tune in now on Spotify, Apple Podcasts, Amazon, and YouTube.

Jul 1, 2024 • 1h 1min
Ep 77 - Can I be addicted to porn?
In this episode, join Dr. Justin Dubin and Dr. Kevin Chu as they delve into a fascinating and controversial topic - addiction to pornography. Renowned neuroscientist Dr. Nicole Prause shares compelling, evidence-based perspectives that challenge common misconceptions.
Discover the latest research on the physiology of sexual response and the complex interplay between pornography, addiction, and sexual health. Dr. Prause's expertise provides a refreshingly data-driven approach, cutting through the noise and emotional rhetoric often surrounding this sensitive issue.
The hosts also emphasize their goal of combating misinformation on this topic. They debunk pseudoscientific claims, like the supposed "MRI of the brain on porn." Additionally, they explore the nuances of how people internalize and respond to pornography based on their own experiences and moral compasses.
Whether you're grappling with personal experiences or simply curious to learn more, this episode offers a thought-provoking deep dive that is sure to spark discussion. Tune in now on Spotify, Apple Podcasts, Amazon, and YouTube.