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Dr. Chris Callewart
Hi.
Sarah Gibson Tuttle
Who here loves when their nails are perfectly done?
Dr. Samantha Youmeen
Me.
Sarah Gibson Tuttle
I'm Sarah Gibson Tuttle and I started Olive in June because let's be real, we all deserve to have gorgeous nails. But who wants to spend a fortune or half their day at the salon? And that's why I created the mani system. So you can have that salon perfect manicure right at home. And guess what? The best part, each mani only costs $2. Yup, you heard me. $2. No more 30, 40, $50 salon trips that eat up your day. Now you can paint your whenever you want, wherever you want. And trust me, you're gonna be obsessed with your nails and everyone is gonna ask you where did you get your nails done? And here's a little something extra. Head over to oliveandjune.com and get 20% off your first mani system with code perfectmani20@oliveandjune.com perfectmanny20. That's code perfectmanny20 for 20% off@oliveandjeune.com perfectmanny2 0. You're all set for a nail glow up. Let's get those nails looking fabulous, shall we?
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Kim Holderness
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Dr. Samantha Youmeen
Foreign. Welcome back. We've got an exciting lineup this episode. First up, we'll discuss a recent clinical trial for a patch that could improve the lives of the many people living with peanut allergies if it gets approved. And then later, we'll explore a surprising theory. Did a volcanic eruption play a role in the spread of the Black Death? And finally, as someone who's currently experimenting with my personal scent, I am very excited about the guest who will be joining me later. Prepare for a unique conversation with none other than Dr. Armpit, we're going to discuss an often ignored but never unnoticed topic, body odor. I'm Dr. Smith Youmeen and this is Curiosity Weekly. Chances are you know someone who has a peanut allergy. Well, there's some encouraging news on the horizon. In December 2025, DBV Technologies shared the successful results of its Phase 3 trial for the Vascan peanut allergy patch. Now this is a comeback for the company considering they faced a pretty tough setback five years ago when the FDA initially rejected the patch. The trial involved 654 children between the ages of four and seven, making it one of the largest studies for peanut allergy immunotherapy. Remarkably, nearly half of those with the Viascan patch could tolerate peanuts after 12 months. That's compared to only about 15% in the placebo group. It doesn't mean they got rid of the allergy. What they actually measured was how much more peanut exposure the body could handle. But the difference in tolerance is encouraging. It could mean less of a risk if you have an accidental exposure. In case you're wondering what happened the last time around, let's quickly revisit some history. The Vascan patch was initially rejected back in 2020 because the FDA said it needed some modifications so that it would stick better to the skin. And they also called for more supporting data. And that wasn't even their first attempt. They had previously withdrawn their application in 2018 and since then they've pressed on. And now with the success of their latest trial, they're gearing up to submit a new application to the FDA in early 20, aiming for priority review. Peanut allergies are a significant public health concern, affecting like 1 to 2% of the U.S. population. And the rates have been rising over the past few decades, especially among children. Living with a peanut allergy can be super challenging because even small amounts of peanuts can trigger severe life threatening reactions. And peanuts seem to be present in a lot of pre packed foods, especially snacks and treats. Ice cream, granola bars, some breads, salad dressing, cereals, and even birdseed and beauty products can be processed in facilities with peanuts. Peanuts. Families managing this allergy have to be vigilant in everyday situations and social settings. Grappling with potential emergencies, social stigma and reading labels and all of that can take a heavy emotional toll on someone. So having a patch that helps desensitize the immune system could be life changing. The Vascan patch works by delivering a small amount of peanut antigen through the skin, effectively retraining the immune system to tolerate peanuts. While most side effects were mild. Some of the study participants experienced skin reactions and two of them had treatment related anaphylaxis. Encouragingly, both of them continued with the therapy and there were no serious adverse events due to the treatment. There's still a way to go, but in the meantime, I'll be keeping an eye on all of the exciting new research in this field because any breakthrough could mean a lot for the families navigating peanut allergies. Here's to hoping for a future filled with more tasty snacks and fewer worries.
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Sarah Gibson Tuttle
Hi, it's Sarah. I'm the founder of Olive and June and can I tell you the one thing that always makes my day better? A fresh manicure. But who has the time or the money to go to the salon every week? That's why we created the Olive and June Gel Mani system. It gives you that same mani that you get at a salon for so much less. It comes with everything you need. A pro level lamp, salon grade tools, our damage free gel polish that lasts up to 21 days. All you do is prep, paint, cure and you're good to go. And the best part? It's super easy and so affordable. Each mani breaks down to $2, so let's skip that $80 salon appointment and get the salon quality look at home for so much less. And on your schedule, head to OliveAndJune.com DIYgel20 and use code DIYgel20 for 20% off your first gel. Man, that's OliveAnJune.com DIY Gel20 code DIY Gel20 for 20% off your first Gel.
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Mani system if you're still sleeping on cotton or satin, that could be the reason for frizzy hair, sleep, creases, overheating and even breakouts. Dermatologists actually recommend switching to silk because it's naturally cooling and much gentler on your skin and hair. That's exactly why over 3 million people have made the switch to Blissey. Blissey pillowcases are made from 100% pure mulberry silk, the highest quality silk you can get. It's breathable, hypoallergenic and surprisingly machine washable so it's easy to care for. People love waking up with smoother hair, calmer skin and no sleep lines. Plus Blissey makes the perfect gift and you can even complete the set with matching sleep masks, silk bonnets and crease preventing scrunchies. Blissey is offering 60 nights risk free plus 30 30% off when you shop@blissey.com unwind your skin and hair will thank you.
Kim Holderness
This is Kim Holderness from the Laugh Lines Podcast and welcome to your Peloton Pilates era. Built on precision, backed by results and trusted by over 2 million members, Pilates with Peloton might just be your new favorite workout. Peloton has Pilates instructors with true expertise and is offering classes for every level from foundational to powerfully challenging. Choose from 10 to 45 minute sessions with little to no equipment, anytime anywhere and with a cross training swivel screen, you can move seamlessly from cardio to mat press. Pilates Small moves, big impact. Find out more@1peloton.com Pilates.
Dr. Samantha Youmeen
Have you ever done that Casual head scratch, then turn to the side to inconspicuously try to check if your armpits smell. I just did it last night. I hate to break it to you, but it was probably obvious what you were trying to do. And that's okay because smelling a little spicy from time to time is a very common experience. And contrary to popular belief, it doesn't necessarily mean you have bad hygiene. There's a whole host of fascinating microbiology happening on our skin. To learn more about it, we have with us Dr. Chris Callewart, who goes by the amusing alias of Dr. Armpit. Dr. Caluaert is a microbiologist at the University of Ghent in Belgium and a science communicator. Welcome to the show, Chris. Or do I call you Dr. Armpit?
Dr. Chris Callewart
Absolutely. Thank you for having me.
Dr. Samantha Youmeen
We're really excited to chat with you about this. Our whole team was fascinated because there's, there's so much more science than you might expect under the armpits. So for starters, let's talk about what causes body odor and how is it different than just sweat?
Dr. Chris Callewart
There's two reasons for body odor. One is sweat and the second is bacteria. So you need, you need both the body odor and in the underarm. We have all types of sweat and we have apocrine sweat there. We don't have that on our forehead or on our scalp or on the upper back. We only have them in the underarms and also in the groin area. And apocrine sweat. You can actually compare it a bit with earwax. It's that sticky yellow liquid, ish, gluey liquid that is actually destined to have a bit of a sense and not necessarily bad, but. And then it boils down to which bacteria we have. If we have the good microbiome, we don't smell in the underarms, but if we have the bad bacteria, we can have a specific musty, sour, oniony, pungent, strong, even cannabis like odor in the underarms. It really boils down to which bacteria we have in the underarms.
Dr. Samantha Youmeen
And how much do we know about the different combinations of microbes that cause different smells? Like is there a recipe, a certain mix of microbes gives this scent versus another?
Dr. Chris Callewart
Yes, more or less. What we have have on average 100 or 200 different species in the underarm and each underarm, so it's a wild diversity of bacteria present there. It's really dependent on which are the dominant strains in the underarm, whether your underarm has a specific odor.
Dr. Samantha Youmeen
I'm curious if there are evolutionary or even cultural factors that shape our perceptions of different body smells and which ones we tend to be drawn to or not. And how has deodorant played a role in that?
Dr. Chris Callewart
Let's take a step back. The thing is, also in the last 100 years, our lifestyle has changed a lot. In fact, deodorant as we know it is has only started since the second World War. Before that, you know, our grandparents didn't have any deodorants and they were just fine. They didn't have any body odor at all. They just used water and soap basically. Right? And now basically 70% of the population has a deodorant. So is using deodorant on a daily basis. 95% has a deodorant. So basically everybody has it. Right? So in the last hundred years, things have changed a lot. Our diet has changed a lot, our cosmetic uses has changed a lot. Hygienic practices change a lot. So that has, in my opinion, led to more people having more body odor. And one another example is also that we usually have body odor in the underarms and not in the groin area or not so much. And that's the reason, because we don't apply deodorants in the groin area or not normally we just use it in underarms and deodorants. Antiperspirants, they have they cause a vast shift in microbiome? We've done several studies on that. If you apply antiperspirants in the underarm, it's a short term solution, you kill bacteria and less bacteria is less older. But once there's, there's a leave on product so there's the stuff remaining and then bacteria adapt to that new environment. And instead of having the good bacteria, we have the smelly bacteria that come back the fastest. And as such we select a bit towards more smelly situation. In terms of culture differences, scent is something very complex. It's really, it really boils down to what is happening in our brain. For some person, scent can be good, another person can be totally awful. It's really associated in our brain and it's actually located in the same area as memories. So scents can retrieve memories really well. In terms of cultural differences, I can also note in the east, in Korea, Japan and Southeast Asia, it's less common to have body odor because they have a difference in gene. For instance, 100% of the Koreans have mutation over of the human gene which their underarms not to smell at all. And it's actually also coupled to their earwax. So you can check if you have that mutation or not. And if your ear wax is not liquid ish, if it's white, dry and flaky, you have that mutation. And that leads to a different kind of apocrine sweat in the underarm, which basically leads the bacteria cannot convert it into smelly compounds. It can have a smell.
Dr. Samantha Youmeen
I was curious if there's like something we've learned culturally, like this is a good smell, this is a smell that we want to be close to or not, but perhaps like we're still in an era of change. So it's not clear yet what that might be.
Dr. Chris Callewart
Well, we tend to cover up odors, right? But in the animal kingdom, odors are super important. It's like the primary source of communication. Like bacteria and little one cell organisms, they would just signal through secretions of molecules. We just tried to cover it up so we don't smell it anymore. But we haven't lost it, it's still there. If you sniff, your underarm is a bit sour, or there's some oniony smell, there's. It can actually also be even be a cue for something going on in the body. So basically if we are sick, we can smell differently. If you have some sort of inflammatory disorders, you can smell differently. Usually for us humans we have a short nose and for dogs it's more Easy to pick up differences in scents because they have a bigger nose and their olfactory ability is up to 100,000 times better than ours. So we can train dogs for smelling cancer, for smelling Covid, for smelling explosives and drugs and everything. But a wide variety of diseases are linked to differences in underarm odor or odor or breath odor or body odor in general. So actually, body odor can be an early warning signal for a disease, can also be altered by medication. Many cases, if there's diabetes, people smell more sweet as a result or more musty as a result. So there's actually many cues that can be linked to health diseases as well. Age as well. So with puberty, you know, hormones peak, and then actually over time, it's the levels of apocrine sweats and odors will decrease until your age of 80 or 90. Then you're again at the same level as childhood. So there's many influences throughout life that impact our scent in general.
Dr. Samantha Youmeen
I want to follow up on something you mentioned, how, for example, dogs can scent different things. They can smell different things on humans. I'm curious if there are. There's some combination of microbes or some certain scents that influence human animal interactions in general. Or I saw you say something about mosquitoes and them having perhaps preferred being attracted to certain smells.
Dr. Chris Callewart
It really boils down to the skin microbiome. There's other influences too, but the skin microbiome has a really big impact on attraction of mosquitoes. We're doing a big project, a big European project on that, on trying to change the skin microbiome in order to have less mosquito attraction or at least have less of virus transfer through to mosquitoes. Because it's an upcoming problem that tropical virus and tropical mosquitoes are coming our way and causing more problems.
Dr. Samantha Youmeen
I know you've done some studies on how different skincare products affect the skin microbiome, comparing like facial lotion, moisturizer, foot powders, and then of course, deodorant. Can you tell us more about how those everyday skin products might be changing our skin bacteria and ultimately influencing our scent in ways we may not realize?
Dr. Chris Callewart
Yeah, the biggest impact is really antimicrobial ingredients, sunscreen, skin moisturizer did not have such a big impact on our skin microbiome. Of course, on our metabolome, we saw that those lipids were added and we could see them for. Even if you don't use that product anymore, you could see them for up to three or four weeks afterwards. It's really a product. These molecules can really attach to the skin For a long, long time. But for an antimicrobial foot powder and definitely also for antiperspirants, these contain antimicrobial ingredients and it's leave on product so it stays on the skin. And that can have a prolonged impact. What we always saw is that the skin microbiome adapts to that new environment. So you kill all bacteria. So in the morning you don't have any bacteria in theory, but throughout the day you sweat, warm, moist and nutritious, is rich. So bacteria will come back. It's inevitable. And it will not be the same bacteria that will come back. It will be the most stress tolerance, most even pathogenic bacteria that will come back the fastest. Not the friendly, not smelly bacteria. But usually it's a smelly bacteria that come back the fastest. So it creates a little bit of a vicious circle where we apply products and we need to apply more in order to maintain that. And that's also a bit what many people have said to me. They come to me, Chris, we, I have tried everything, nothing's working anymore. They tried one product, went on to another, then that works for, for a couple of months, didn't work anymore. And then he applied another product, works for a while, stops working, need to change again. And at some point they're just at the end of the process and they have completely messed up under our microbiome, completely out of whack, usually containing multi resistant bacteria that are just constantly causing bad smells, not just on the skin, but also inside the skin. So it's a situation that is hard to get rid of in a natural, in a normal way.
Dr. Samantha Youmeen
I was chatting with our producer Theresa Carey and we were talking about the cultural belief among some backpackers and hikers that not using deodorant and showering less frequently can help reduce body odor over time. Especially if you're out there for many, many days. Because the skin microbiome can adjust to that less frequent washing. So is that true and how does the composition of sweat change if you're now altering your hygiene? Just kind of counterintuitive to what most people would expect to do.
Dr. Chris Callewart
I've heard many cases where it was very successful and actually many people have tried it during COVID then they didn't have to go to the office, they could stay at home and then they could apply instead of applying every, every morning deodorants, they can just stop using it, go for a detox or apply something else. And usually with a detox you stop all underarm cosmetics in the first week or first Two weeks will be hard. You smell more and it's unpleasant. You're not used to it, but after a while the microbiome adapts. Basically you have 100 different species living in the underarm and some of those, you know, gram negative ones are really became quite dominant. But if you leave it up to the microbiome, they really fight each other. They will secrete molecules that kill each other. Not themselves, but not other bacteria. And so it's really bacterial warfare among each other. And it's usually some dominant species can become dominant again and will kill all the bacteria. And hopefully that's a good bacteria that will then be on the winning hands and will basically create a microbiome that is stable that will ward off any musty, sour, pungent small odors and you can free of body odor. Not a guarantee for recipe for success. Sometimes it's also one of those smelly bacteria becomes dominant.
Dr. Samantha Youmeen
See I love to experiment with things, especially when it comes to skincare. So I'm very tempted to try out this experiment. But at the same time I do a sport where I'm like sweating very heavily for like two to three hours a day. So it feels like that's an experiment that wouldn't go well for me. Is, is that related? Like does it matter how much you're sweating on a given day to, to whether this type of approach would work for you?
Dr. Chris Callewart
It's in fact not related to the wet sweat and the smelly sweat is, is not, not necessarily related to each other. You can have hyperhidrosis, you can have wet underarm or underarm stains which is not smelly at all. So it's sometimes can be smelly but in theory it's irrespective of each other. There, there, there's no direct influence on really boils down to not how much you smith, but how much which bacteria we have there. And they're quite stable over time. You can influence it by changing your underarm cosmetic, your deodorant or antiperspirant. You can influence it by hormone stress have a big impact. Also diet has a big impact. You can steer a bit based on consuming meat, vegetables, caffeine, coffee, sugary drinks, fast food. All these things can really have an impact on older generation under arm as.
Dr. Samantha Youmeen
As well Anecdotally it seems like nervous sweat has a different smell than just like regular sports sweat. I don't know if that's a, if there's a truth to that or like.
Dr. Chris Callewart
And that's because adrenaline that is caused by stress has a direct impact on apocrine sweat glands. And these are actually located in the hair follicle. And they will push out the content of the apocrine sweats. Remember the yellow sticky stuff? They will push it out and inside there's already bacteria living there and converting everything in there. So stress sweats can actually really smell much stronger than ultra sweat. Yeah.
Dr. Samantha Youmeen
We've talked on the show before about the microbiome in the gut. That's a very popular topic in research these days and in pop culture or pop science, and how that gut microbiome can impact health in so many ways that we're still learning about. I was reading in one of your papers that the skin and gut microbiome are connected. Can you explain more?
Dr. Chris Callewart
Yeah, it's called the skin, the gut skin axis. And it's actually a bidirectional relationship. We've done a deep dive into literature and we saw that that's most, if not all of the common skin disorders have a direct relationship with the gut gut microbiome, the gut, health in general, psoriasis, eczema, acne, they're all related to the gut and even body odor. We found that it is also related to the guts. So you are what you eat, you smell how you eat. They have a direct impact on your health.
Dr. Samantha Youmeen
Just to end off here, I wanted to ask, is there anything that you want to share about something people might want to think about changing or experimenting with, or do you have any maybe interesting or surprising things that you do based on your research and how it's impacted the way you deal with your armpits? Because you are Dr. Armpits. I gotta ask, what tips do you have for my pits?
Dr. Chris Callewart
Tips? People don't need to take an example to me, but I don't use any, any shampoo, I don't use any deodorants and facts. It's quite good for me. But what are tips for the pits? I can give you some tips. Let's say eat more vegetables, specifically spinach, kale, anything green that will help the guts, that will help protect the guts inside. Eat less red meat, eat more fish. Omega 3 fatty acids, which is good. No fast foods or very limited amount of fast foods. No fizzy drink, no sodas, no sugary, no fast, refined sugars. Limit the number of cookies, chocolates, just stick to one or a couple. Have less stress. Easier said than done. Of course.
Dr. Samantha Youmeen
Don't be stressed.
Dr. Chris Callewart
Yeah, exactly. I would say also limit amount of caffeine. That can also lead to more stress and more body odor. Don't wear polyester, but wear cotton. Natural fiber is better than synthetic fibers. People always rate their underarms as worse than it is in reality, so it's usually not as bad as you think it is. Because your underarms are right underneath your nose. You're the first one to smell it, but therefore another person will not necessarily smell it. You will be the first one to notice it, so don't stress about it too much. A bit of odor is perfectly okay.
Dr. Samantha Youmeen
Dr. Chris Callowart, aka Dr. Armpit, is a researcher and science communicator. Sharing the science on armpit body odor in relation to the microbiome. I first discovered Chris on threads actually, where you go by Dr. Armpit. That's rmpit. Highly recommended. Follow so many fun things to learn from you and thank you so much for being on our show. Chris.
Dr. Chris Callewart
Thank you. Thanks Sam.
Dr. Samantha Youmeen
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Kim Holderness
This episode is brought to you by Peloton. The new Cross Training Series balances your workouts with more than 15 workout types for endless movements on and off your equipment. Stay motivated with weekly personalized plans that guide you from beginner to expert and push you past your goals with routines tailored to you. Get the new Cross Training Series Terms.
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Dr. Samantha Youmeen
It's been 700 years since the Black Death decimated the globe. Since then, we've learned a lot about what actually happened. We know that that plague is the most deadly documented pandemic in human history. It was spread by fleas. We know that it likely started in Central asia during the 1300s, and that it spread super fast, killing anywhere between 75 to 200 million people across Europe and Asia in two decades, including roughly half the population of Europe at the time. But a new paper published in Communications, Earth and Environment is shedding light on some of the unknowns surrounding the Black Death, namely, the perfect storm of coincidences that brought the plague to Europe in the first place. The Black Death, or bubonic plague, is caused by a bacterium that infects fleas. During the medieval period, the infectious disease was transmitted by the fleas to small mammals like rats, and it eventually spread to humans. Researchers have known that global trade was a likely cause of the plague's transmission from Asia to Europe, but they weren't sure of any specifics until now. The researchers analyzed samples of ice from Antarctica and Greenland, as well as tree rings from Spain that grew during the 1340s. In the ice, they found evidence of high concentrations of sulfur, and the tree rings showed that the temperatures were unnaturally cold during the summers of 1345 and 46, the coldest summers in nearly a century. They combine this new knowledge of a sulfuric cold atmosphere with records of poor harvests, high grain prices, and notes on weather during that time. Using all that information, they suggest that either one massive volcanic eruption or a cluster of eruptions occurred, pushing tons of sulfur high into the Earth's atmosphere. This would have blocked out the sun's heat and caused harvests to fail around the Mediterranean region. Coastal cities in Italy were particularly impacted, and food supplies began to decline. The Italian city states had to resort to emergency international imports to feed their people, and that is where the fleas come in. The fleas that carry the plague are able to survive for long periods without a host by eating grain dust, which allowed them to stay alive during the long journey across the Black Sea from Asia to Europe. The fleas arrived with the grain. They were stored and distributed, and the Black Death devastated the continent. This research actually tells us a lot about the climate's potential role in perpetuating deadly illnesses throughout history. The term quarantine actually came as the result of the Black Death. It's from the Italian word for 40 quaranta, because people learned that there was less disease when the sailors were forced to stay aboard their ships for 40 days before coming ashore. As climate change continues in the aftermath of COVID 19, it's important to look at the relationship between environmental health and human health so that we can be better prepared for next time. For Warner Bros. Discovery Curiosity Weekly is produced by the team at Wheelhouse DNA. The senior producer and editorial correspondent is Teresa Carey. Our producer is Chiara Noni, our audio engineer is Nick Kharisimi and head of Production for Wheelhouse DNA is Cassie Berman. And I'm Dr. Samantha Youen. Thanks for listening.
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Kim Holderness
This is Kim Holderness from the Laugh Lines Podcast and welcome to your Peloton Pilates era. Built on precision, backed by results and trusted by over 2 million members, Pilates with Peloton might just be your new favorite workout. Peloton has Pilates instructors with true expertise and is offering classes for every level from foundation, foundational to powerfully challenging. Choose from 10 to 45 minute sessions with little to no equipment, anytime anywhere and with a cross training swivel screen you can move seamlessly from cardio to mat press. Pilates Small moves, big impact. Find out more@onepelaton.com Pilates support is available.
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Host: Dr. Samantha Yammine (Dr. Sam)
Guest: Dr. Chris Callewart ("Dr. Armpit"), Microbiologist, University of Ghent
Release Date: February 18, 2026
This episode plunges into the often-overlooked world of body odor—its science, origins, and what can (and can’t) be done about it. Host Dr. Sam welcomes Dr. Chris Callewart, known playfully as "Dr. Armpit," to reveal what’s really brewing under our arms and why our war on body odor may be doing more harm than good. The episode decodes how microbes, sweat, culture, genetics, and everyday habits interact to create our unique scents, and provides practical (and sometimes surprising) advice on how to manage your own aroma.
[09:22 – 09:36]
Notable Quote:
"There's two reasons for body odor. One is sweat and the second is bacteria. So you need both."
— Dr. Chris Callewart [09:36]
[10:31 – 10:57]
[11:10 – 13:24]
Notable Quote:
"Deodorants...cause a vast shift in microbiome...Short term you kill bacteria and less bacteria is less odor. But...bacteria adapt...and the smelly bacteria come back the fastest."
— Dr. Chris Callewart [11:10–12:24]
Science Fact:
[13:24 – 15:26]
[15:26 – 16:18]
Notable Project:
"We're doing a big project...trying to change the skin microbiome in order to have less mosquito attraction..."
— Dr. Chris Callewart [15:50]
[16:18 – 18:27]
Notable Quote:
"It creates a little bit of a vicious circle where we apply products and we need to apply more..."
— Dr. Chris Callewart [17:46]
[18:27 – 20:14]
[20:14 – 21:27]
Notable Quote:
"It's not related to how much you sweat...it's which bacteria we have there."
— Dr. Chris Callewart [20:39]
[21:27 – 22:57]
Notable Quote:
"You are what you eat, you smell how you eat."
— Dr. Chris Callewart [22:57]
[23:23 – 24:44]
Memorable Closing Reminder:
"People always rate their underarms as worse than it is in reality... A bit of odor is perfectly okay."
— Dr. Chris Callewart [24:44]
"If you have white, dry, flaky earwax, you have a mutation and...the bacteria cannot convert it into smelly compounds."
— Dr. Chris Callewart [12:24]
"We apply [deodorant], bacteria adapt, and as such we select a bit towards more smelly situations."
— Dr. Chris Callewart [11:49]
"If you have diabetes, people smell more sweet...or more musty as a result.”
— Dr. Chris Callewart [14:30]
“You can free your body of odor—not a guaranteed recipe for success. Sometimes, it’s also one of those smelly bacteria that becomes dominant.”
— Dr. Chris Callewart [19:57]
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Episode produced by Teresa Carey and the Wheelhouse DNA team.