

The TriDoc Podcast, triathlon and health in one place
Dr. Jeff Sankoff
Jeff Sankoff is the TriDoc, a physician who will do the research so you don't have to in order to understand if any of those things marketed to endurance athletes can deliver close to what they promise. Before you put anything in or on your body, understand what the science says by listening to an expert who has done the work for you.
Episodes
Mentioned books

Nov 28, 2025 • 1h 3min
Ep. 185: Smiling to perform and Breathe Easy: How Air Quality Data Can Save Your Race Day
In this episode:Can smiling make you perform better? We know that when you are happy that you will smile but it turns out that the relationship may be more of a two way street. that is to say, if you smile it can actually make you happy as well. On the Medical Mailbag we look at some fascinating science that suggests smiling can have some pretty important impacts on performance. Plus, I chat with Will Hicks, the brain behind the Air Track app, which does the heavy lifting of tracking air pollution like a hawk with a PhD. With a mix of traffic data, meteorological conditions, and some AI wizardry, this app offers insights that could make even the most oblivious runner stop and think twice about their chosen route. Will shares how understanding the local air quality can help athletes reduce exposure to pollutants, and let's be real, nobody wants to inhale a cloud of diesel fumes while trying to crush that PR. Spoiler alert: it turns out that even a couple of blocks away from a bustling street can drop your pollution exposure by 30%. So why not take the scenic route? The episode is packed with actionable advice, a dose of sarcasm, and the hard truth about how air quality impacts our health and performance. Who knew a little data could go such a long way in keeping us breathing easy while we sweat it out on those trails?Segments:[06:26]- Medical Mailbag: Smiling to perform[36:36]- Interview:Will Hicks LinksWill's Facebook page @airawarewill on Instagram Will's Website Will on YouTube places2swim web site

Nov 14, 2025 • 1h 4min
Ep. 184: Earthing: The Barefoot Myth That's Got Us All Laughing and Nick Tiller Exposes Health Hacks
In this episode:If you're going to take one nugget of wisdom from this chat, let it be this: there are absolutely no shortcuts to health and wellness. Seriously, 99.9% of the so-called miracle products and supplements out there? Yeah, they don’t do squat—at least not in the way they claim. Join me and my guest, the exercise wizard Nick Tiller, as we dive into the wild world of wellness myths that social media is just itching to sell you. Spoiler alert: it’s mostly a dumpster fire of misinformation, and we’re here to help you sift through the nonsense. So, if you’re looking for the magic pill that’ll turn you into an Ironman overnight, you might want to keep looking—because putting in the actual time and effort is where the real gains are at. Grab a drink, kick back, and let’s get into it!Segments:[09:18]- Medical Mailbag: Grounding[30:48]- Interview: Nick Tiller LinksNick's Website @nb.tiller on Instagram @NBTiller on X

Oct 31, 2025 • 1h 7min
Ep. 183: Glucosamine and Triathlon at 80: The Unbelievable Journey of Natalie Grabow
In this episode:In this episode, we are tackling the very real question of glucosamine supplements and their supposed benefits for athletes. As we navigate through the medical mailbag segment, we dive deep into the research surrounding glucosamine, looking at whether it has any real impact on cartilage repair and overall joint health for those of us who put our bodies through the ringer on race day. We explore the mixed evidence surrounding glucosamine, discussing how it’s often touted as a miracle worker in the world of sports medicine. We dissect the studies that claim benefits, while also highlighting the lack of compelling evidence that definitively shows glucosamine can help endurance athletes recover from injuries or improve performance. Natalie Grebo's journey through the triathlon world is like a fairy tale, but with more sweat and less magic. At the ripe age of 81, she's not just participating; she's breaking barriers, becoming the first female finisher in her age group at the Ironman World Championships. In this episode, we dive into her remarkable story, where overcoming injuries, defying age stereotypes, and embracing the thrill of competition take center stage. The conversation kicks off with Natalie reflecting on her 21 years in triathlon, emphasizing her love for movement and the joy of pushing herself. Despite facing setbacks, her determination shines through as she shares how she navigates challenges and maintains her competitive spirit. With a delightful mix of humor and humility, she recounts her experiences, making it clear that age is merely a number when it comes to pursuing passion and fitness. As the episode unfolds, we also tackle the importance of community and support in the sport. Natalie’s interactions with fellow athletes and her family add a heartwarming touch, showcasing the camaraderie that fuels her journey. So grab your headphones and get ready to be inspired by a true trailblazer in the triathlon world. This episode isn’t just about racing; it’s about the mindset that keeps us moving through life, regardless of age. Natalie’s story serves as a reminder that it’s never too late to start something new, and that the desire to keep going can lead to extraordinary achievements. Tune in as we celebrate not just her accolades, but the spirit of resilience that embodies the essence of triathlon. Whether you’re an athlete or just someone looking for motivation, Natalie’s infectious enthusiasm will leave you wanting to lace up your shoes and hit the pavement yourself!Segments:[08:44]- Medical Mailbag:[37:44]- Interview:Links

Oct 17, 2025 • 1h 12min
Ep.182: Tymewear for ventilatory metrics in training and another visit with Matthew Marquardt
In this episode:In the Medical Mailbag we look at the evidence behind using ventilatory metrics to assess and prescribe training zones as well as training loads especially as it pertains to measurement with the new to market Tymewear chest strap. This tech got a lot of buzz at this year's Tour de France but is it ready for adoption by age groupers? Plus, we catchup with the whirlwind journey of Matthew Marquardt, a med student who’s also a triathlon sensation. With a season filled with victories, including a dazzling performance at the World Championships, Matthew shares the gritty reality behind the glamour of triathlon fame. From the grueling training schedules to the unexpected cramping that could rival any medical mystery, he takes us behind the scenes of his life as he balances studies and races. The conversation turns to the dramatic events at Kona, where high stakes and even higher temperatures led to heartbreaking moments for some of the sport’s best women. Matthew reflects on the emotional rollercoaster that these athletes endured and what it truly means to compete at such a high level under extreme conditions. The dynamic between the race’s history in Kona versus Nice is also a hot topic, highlighting the different styles of racing that favor various types of athletes. With a sharp tongue and an eye for the absurd, this episode humorously critiques the current state of the sport while also celebrating the triumphs of those brave enough to compete. It’s a heartfelt testament to resilience, determination, and the unexpected twists that come with chasing greatness in triathlon.Segments:[10:11]- Medical Mailbag: Tymewear[37:14]- Interview: Matthew Marquardt Links@matthewmarquardt on Instagram

Oct 3, 2025 • 58min
Ep. 181: Sipping Tea and Debunking Myths: L-Theanine and the Mercola Tapes
In this episode:L-theanine is found in tea leaves and promises to help you be calm and focused. Does it work and is there evidence it can help you perform better? We look in to it on the Medical Mailbag. Then, we're diving headfirst into the wild world of wellness disinformation in this episode, where we tackle the absurdity of trusting health influencers like Dr. Joseph Mercola, who somehow manages to make a fortune peddling questionable advice. Our guest, Jonathan Jarry, a science communicator from McGill University, spills the tea (pun totally intended) on Mercola's bizarre reliance on a psychic medium for guidance on health matters. You heard that right—this guy's taking medical advice from someone channeling a spirit named Balon. We chat about how this all ties into the larger trend of seeking simple answers to complex health questions, and why people are so easily duped by flashy claims. As we dissect the ludicrousness of it all, we’ll arm you with some tools to cut through the nonsense and hopefully make better choices in your health journey. So buckle up, because this rollercoaster of ridiculousness is about to get real!Segments:[06:49]- Medical Mailbag: L-theanine[28:57]- Interview: Jonathan Jarry LinksJonathan's Website The Mercola Tapes on YouTube

Sep 19, 2025 • 57min
Ep. 180: Lumos sleep mask and From Hockey to Triathlon: The Unlikely Journey of a Future Doctor
In this episode:Diving into the chaotic yet exhilarating world of triathlon and medicine, this episode showcases the fascinating journey of Pavlos Antoniedes, a medical student who somehow juggles both rigorous academic studies and being a national-level triathlete. Imagine the life of someone who, while mastering the complex anatomy of the human body, also trains like a beast, preparing for grueling competitions. The conversation starts with the absurdity of trying to balance a medical career with the demands of elite triathlon training. Pavlos shares his backstory—how he transitioned from hockey to triathlon, driven by family ties and a desire to find a sport that resonated with him. As we laugh and shake our heads at the sheer madness of it all, he reveals how he manages to keep his training schedule flexible enough to dodge the pitfalls of burnout and exhaustion, all while excelling in medical school. It's a wild ride filled with insights into the pressures athletes face, the mental gymnastics needed to excel in both fields, and the occasional sarcastic quip about medical exams and race days that will leave you chuckling at the absurdity of it all.Segments:[07:28]- Medical Mailbag: Lumos Sleep Mask[time stamp]- Interview: Pavlos Antoniades Links@pavanton31 on Instagram Pavlos 's Facebook page Lumos

Sep 5, 2025 • 1h 7min
Ep. 179: Arnica and Stephanie VanBebber on Marathons and Cancer: Should You Be Worried?
In this episode:In the MMB we take a look at the science behind the popular homeopathic remedy arnica. Is there any merit to this topically applied plant derivative for treating delayed onset muscle soreness? Plus, our guest, Stephanie Van Bebber, brings her expertise in clinical research to the table as we navigate through the headlines that have left many in the running community feeling a bit queasy (and not just from the gels). The study in question reveals that ultra runners might be at an increased risk for advanced adenomas, those pesky precursors to cancer. But before you toss those running shoes into the nearest donation bin, let’s unpack what this really means. It’s not about condemning the sport we love, but rather about understanding the potential risks and the importance of screening. If you’re an ultra runner or just a casual jogger, this episode offers valuable insights into how we can better care for our bodies while still pursuing our passion for running. From the biological theories behind inflammation and gut health to practical advice on when to see a doctor, we cover it all. Segments:[06:49]- Medical Mailbag: Arnica[35:56]- Interview: Stephanie VanBebberLinksSteph on IG: @stephanievanbebberhttps://www.fiv3racing.com/https://svbcoach.com/

Aug 22, 2025 • 1h 7min
Ep. 178: Cutting through the creatine hype and From Cross Country to Caribbean: Embrace Your Inner Roller Skier!
In this episode:Creatine is all the rage being pushed by nutritionists and coaches on anyone who will listen. This supplement would seem to be the answer to all that ails you if you give any credence to the innumerable influencers who proselytize about its benefits. But what does the science say and specifically, what does it say with respect to endurance athletes? On the Medical Mailbag we dig in and try to find the real answers. Then, our guest Silas Eastman brings us on a wild ride through the world of cross country skiing and the upcoming roller ski competition in the Caribbean. Yep, you heard that right! We’re talking about skiing where it’s sunny and the only chill is your drink. Silas enlightens us on why cross country skiing is the perfect sport for all ages, and how it’s actually easier on the body than running. We also highlight the benefits of this unique sport for triathletes looking to up their game. Get ready for a lively discussion that will leave you questioning your workout routine and maybe even planning a trip to the Caribbean to try it out yourself!Segments:[06:25]- Medical Mailbag: Creatine[39:52]- Interview: Silas EastmanLinksFast Talk Labs podcastJackson Ski Touring Foundation

Aug 8, 2025 • 1h 5min
Ep 177: Shark Deterrents: The Science Behind the Hype or Just Another Marketing Gimmick? and From Photography to Shaving: How Adam Barker is Changing the Game
In this episode:Follow Jeff and Juliet as they discuss the latest in shark deterrent technology, it’s clear they’re not just swimming in shallow waters; they’re making waves with some serious scientific discussions. After that, we’re diving right into the wild world of photography and entrepreneurship with our guest, Adam Barker, who’s here to chat about his journey from snapping epic shots of athletes to launching his own shaving brand for the leg-shaving men out there. You heard that right—he’s not just a talented photographer, but also a man on a mission to help guys embrace smooth legs while they pedal through life. Adam spills the beans on his award-winning shot from the X Games, which sounds like it was taken during a superhero landing, and we get into the nitty-gritty of his new venture, Bolt Skin and Shave. Along the way, we’ll also tackle some seriously hairy topics—pun intended—about the absurdity of shaving culture in the cycling world and how not all razors are created equal. So grab your earbuds and get ready to laugh, learn, and maybe rethink your leg-shaving game!Segments:[13:16]- Medical Mailbag: Shark Banz[38:13]- Interview: Adam BarkerLinksWatch this and let's go from there! https://www.instagram.com/reel/DEkwwuXRmD7/?utm_source=ig_web_copy_link&igsh=YnRrZDJzMzl5ZGw3 @BOLTskinshave on Instagram Adam 's Website Adam on YouTube

Jul 25, 2025 • 1h 12min
"Sleep Like a Pro: The Truth About Cooling Blankets and Your Recovery" and How One Guy's Trash is Another's Treasure": Recycling Shoes
In this episode:In a world where our running shoes are often treated like disposable fashion items, Stuart Jenkins, CEO of Blumaca, is on a mission to change the narrative. With a background in competitive running that once led him to the Olympic trials, he’s now tackling the issue of foam waste in footwear with a sense of urgency that’s downright inspiring. After uncovering the shocking amount of foam waste generated by shoe manufacturing – enough to produce billions of insoles – he decided to repurpose that foam into high-quality, sustainable products. This episode isn't just a feel-good story; it's a wake-up call about our consumption patterns. Jenkins shares his journey from an aspiring Olympian to an entrepreneur who’s not just talking about sustainability but actively making strides to improve it. He discusses the innovative processes Blumaca employs to ensure that the foam waste is transformed into products that not only last longer but also perform better than the standard insoles we’re used to tossing aside after a few runs. The irony? The very material we think of as trash is becoming a crucial component in high-performance footwear. And if you’ve ever wondered what happens to those old shoes piling up in your closet, Jenkins has some insight that might just inspire you to rethink your recycling efforts.Segments:[13:17]- Medical Mailbag:[40:15]- Interview: Stuart JenkinsLinksInformation can be found here: https://drive.google.com/file/d/10DyAp2F4b8vG0v4DvsO53L04zbXQp3qk/view?usp=share_link Stuart 's Facebook page @blumaka on Instagram Stuart 's Website Stuart on YouTube


