⚡ Stress may be the cause of your gut problems. This might be emotional stress, or even physical stress - in fact, worrying about things can even cause problems for your tummy! So what can you do about it?

💬 Dr Emeran Mayer is gastroenterologist and brain-gut microbiome expert. He’s also Executive director of the UCLA Oppenheimer Center for the Neurobiology of Stress. In this episode he explores the science behind the stress/gut connection. And he digs into issues from chronic pain, to rising cases of SIBO.

🎧 Stay tuned to find out:

➡ How various forms of stress - and even the expectation of stress - impact your gut 

➡︎ How gut disorders can be linked to early life trauma

➡︎ The true extent to which gut bugs control how you behave

➡︎  How you can improve chronic pain symptoms with targeted gut action

➡︎ The real reason SIBO (small bacterial overgrowth) is on the rise

📕 Chapters

(0:00) How stress affects the gut

(2:03) The chronic pain-gut link

(5:00) How quickly can microbes influence the brain?

(7:12) Stress: Is the brain or gut more responsible?

(9:14) How worrying can cause gut problems

(11:57) The role of childhood and early life trauma on gut health

(15:16) Do tummy bugs control our behaviour?

(18:38) The importance of personal connection and sharing microbes 

(21:33) How to reduce chronic pain symptoms

(27:56) Improving brain health by eating more fibre

(31:58) SIBO - the new buzzword. Hype or health?

📱 Connect with me:

TikTok: https://www.instagram.com/drkaranrajan

YouTube: https://www.youtube.com/@DrKaran 

Instagram: https://www.tiktok.com/@dr.karanr

📱 Connect with Emeran

Instagram: https://www.instagram.com/emeranmayer/ 

Website: https://emeranmayer.com/ 

🔥 Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.beehiiv.com/subscribe

🔥 For more useful science for your everyday life, grab my best selling book “This Book May Save Your Life”: https://geni.us/DrKaranBook 

🎙️ An OG Podcasts production.

⚡ Are men’s health issues being ignored? With the rise of the “manosphere”, poor male role models and increasing focus on the harm men cause - one activist argues we’ve begun to see men as the enemy, and it’s costing us.

💬 George, known as TheTinMen online, is a men’s health activist. He tackles issues where he feels men are being let down by society - everything from domestic violence to suicide prevention. His view is that men’s physical and mental health is not being taken seriously - and it’s doing them a massive disservice.

🎧 Stay tuned to find out:

➡︎  Why being a man is the biggest predictor for early death

➡︎ Why the term manosphere has become “meaningless”

➡ Why the world is lacking good male role models - and where to actually find them

➡︎ How 91% of men who died of suicide already saught help first

➡︎ Why Adolescence did a bad job of portraying the manosphere

📕 Chapters

(0:00) Intro

(3:12) What is the manosphere?

(7:31) Did Netflix’s Adolescence get it right?

(9:46) Why the manosphere has exploded

(12:06) Why fathers are so important

(16:51) Are there any good male role models out there?

(24:43) The power dynamic between men and women

(27:40) Does men’s health get enough attention?

(35:51) Why suicide prevention isn’t working for men

(38:54) The issue with Movember - where is the money going?

(43:47) Male body image

(46:50) How female role models influence men

(51:36) Kids watch your every move

📱 Connect with me:

TikTok: https://www.instagram.com/drkaranrajan

YouTube: https://www.youtube.com/@DrKaran 

Instagram: https://www.tiktok.com/@dr.karanr

📱 Connect with TheTinMen:

Instagram: https://www.instagram.com/thetinmen/

YouTube: https://www.youtube.com/@thetinmenblog 

🔥 Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.beehiiv.com/subscribe

🔥 For more useful science for your everyday life, grab my best selling book “This Book May Save Your Life”: https://geni.us/DrKaranBook 

🎙️ An OG Podcasts production.

⚡ If you want a big, healthy and young brain - there is a simple solution that can add years to your life.

💬 Neuroscientist Dr Ben Rein explains why social connection, chatting to strangers and seeing your friends is essential for brain health - and can literally make it bigger. He also discusses the brain benefits of pets, the science of empathy and more.

🎧 Stay tuned to find out:

➡ How pets hijack our brain systems in the best possible way

➡︎ How an ‘epidemic of loneliness’ is fueling conditions like dementia and heart disease

➡︎ How online interactions and AI chatbots impact brain chemistry

➡︎  Where empathy comes from and how to get more of it

➡︎ The science of awe and whether free will exists

📕 Chapters

(0:00) Intro

(0:36) Why our brains need friends

(2:15) The neuroscience of empathy

(5:52) Are pets good for brain health?

(10:33) Do animals have empathy too?

(12:05) Are WE good for our pets brains?

(13:36) Why animals love music

(15:28) How ‘super-agers’ keep their brains healthy

(20:01) Do virtual chats also help brain health?

(22:44) How social connection reduces dementia risk

(26:27) What AI chatbots are doing to our brains

(30:33) The science of awe and wonder

(33:07) How to make your life feel longer

(36:44) Empathy and mirror neurons

(40:18) Does free will exist?

(46:22) How to become more empathetic

📱 Connect with me:

TikTok: https://www.instagram.com/drkaranrajan

YouTube: https://www.youtube.com/@DrKaran 

Instagram: https://www.tiktok.com/@dr.karanr

📱 Connect with Ben:

Instagram: https://www.instagram.com/dr.benrein/ 

YouTube: https://www.youtube.com/c/benrein 

Website: https://www.benrein.com/ 

🔥 Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.beehiiv.com/subscribe

🔥 For more useful science for your everyday life, grab my best selling book “This Book May Save Your Life”: https://geni.us/DrKaranBook 

🎙️ An OG Podcasts production.

⚡ ️Gut health is an absolute minefield. Trying to figure out what works best to protect your gut is becoming increasingly complex - but it doesn’t have to be. The science is pretty clear and in this episode we break down the simplest measures you can take for a healthy gut.

💬 Dr Emily Leeming is a gut health dietician and author of Genius Gut. And she’s currently running a very important trial at King’s College London - looking at the link between the gut microbiome and bowel cancer risk. 

🎧 Stay tuned to find out:

➡ Whether microbiome tests are worth your money (and what to do instead)

➡︎ How bowel cancer is on the rise in under 50s (and why fibre is the solution)

➡︎ Why you need to spend more time studying your poop

➡︎  Whether microplastics are really damaging your gut health

➡︎ Where gut health meets neuroscience

📕 Chapters

(0:00) Intro

(0:37) Best way to get on top of your gut health

(1:24) Why microbiome tests are a waste of money

(10:12) Emily’s KCL study on bowel cancer

(20:46) The effect of microplastics on gut health

(26:47) Gut factors that are out of your control

(32:21) Your gut health starts in your mouth

(35:36) Researching non-industralised microbiomes

(40:22) How your gut affects your brain

📱 Connect with me:

TikTok: https://www.instagram.com/drkaranrajan

YouTube: https://www.youtube.com/@DrKaran 

Instagram: https://www.tiktok.com/@dr.karanr

📱 Connect with Emily:

Instagram: https://www.instagram.com/dremilyleeming/ 

Website: https://www.emilyleeming.com/ 

🔥 Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.beehiiv.com/subscribe

🔥 For more useful science for your everyday life, grab my best selling book “This Book May Save Your Life”: https://geni.us/DrKaranBook 

🎙️ An OG Podcasts production.

⚡️Autism, ADHD and anxiety are on the rise in children - but there is a way to rewire our kids’ brains and even reverse symptoms of these conditions…if we get in early enough. But how?

💬 Trenna Sutcliffe is a developmental-behavioural pediatrician at Sutcliffe Clinic. She helps parents navigate neurodevelopmental conditions and build mentally resilient children. She says the work must start young - and shares key tools and techniques that parents can implement.

🎧 Stay tuned to find out:

➡ Why ADHD and autism is really on the rise - and how much of it is genetics

➡︎ The science of neuroplasticity and why the first 7 years of a child’s life are crucial

➡︎ Just how closely linked screentime is to worsening ADHD symptoms

➡︎  Why educational spaces simply don’t work for some children

➡︎ Why autism is regularly missed in girls

📕 Chapters

(3:15) Why are ADHD and autism on the rise?

(6:48) How much is genetically driven?

(9:31) How the environment influences brain health

(18:46) Diet & microbiome effects on neurodivergence

(22:46) How worried should we be about screentime?

(29:05) Why schools aren’t set up right

(34:34) What you should do for your kids in their first 7 years

(38:48) Why autism is often missed in girls

(42:03) Lower rates of autism in ethnic minorities

(43:41) Trenna’s top tips for raising healthy kids

📱 Connect with me:

TikTok: https://www.instagram.com/drkaranrajan

YouTube: https://www.youtube.com/@DrKaran 

Instagram: https://www.tiktok.com/@dr.karanr

📱 Connect with Trenna:

Website: https://www.sutcliffeclinic.com/trenna-sutcliffe 

LinkedIn: https://www.linkedin.com/in/trenna-sutcliffe-463001b2/ 

🔥 Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.beehiiv.com/subscribe

🔥 For more useful science for your everyday life, grab my best selling book “This Book May Save Your Life”: https://geni.us/DrKaranBook 

🎙️ An OG Podcasts production.

💬 Jens Walter is a gut health expert at APC Microbiome Ireland, one of the leading microbiome centres in the world - and helped develop the Non-industrialised Microbiome Restore (NiMe) diet.

⚡️In this episode, Jens and I discuss how our microbiomes have been shaped throughout human history - and the foods we can eat to make our healthy microbes flourish. 

🎧 Stay tuned to find out:

➡︎ Just how different our guts are from indigenous communities and our early ancestors

➡︎ What the NiMe diet is and how it can supercharge your gut health

➡︎ Why community and culture is just as important as food for gut health

➡︎ Why some of our gut microbes have gone extinct

➡︎ How pairing meat with the right kind of fibre can increase its benefits

📕 Chapters

(00:43) How industrialisation has changed our microbiome

(02:18) Do personalised diets work for gut health?

(05:52) Emerging gut microbe research

(07:27) How sharing microbes in communities improves gut health

(12:56) Combining the benefits of Western and indigenous lifestyles

(15:01) How different our guts are from ancient humans

(18:15) Can we regain extinct microbes?

(21:35) Exploring the Yanomami tribe

(24:11) The NiMe diet

(27:14) Should we cut out all dairy?

(30:01) Balance vs restriction

(32:23) Benefits of pairing fibre with meat

(35:27) Best resistant starches to eat

(38:36) Ancient vegetables: Are they better for us?

📱 Connect with me:

Instagram: https://www.instagram.com/drkaranrajan

YouTube: https://www.youtube.com/@DrKaran 

TikTok: https://www.tiktok.com/@dr.karanr

📱 Connect with Jens Walter:

LinkedIn: https://www.linkedin.com/in/jens-walter-b1a1127a/

🔥 Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.beehiiv.com/subscribe

🔥 For more useful science for your everyday life, grab my best selling book “This Book May Save Your Life”: https://geni.us/DrKaranBook 

🎙️ An OG Podcasts production.

💬 Dr Spencer Nadolsky is an obesity and lipid specialist, and an expert in GLP-1 care. He’s also the co-host of the Docs Who Lift podcast.

⚡️In this episode Spencer and I discuss emerging research around weight loss injections tirzepatide and semaglutide, known as Ozempic, Wegovy and Mounjaro - and discuss the proper use of these drugs.

🎧 Stay tuned to find out:

➡︎ Why old restrictions on weight loss drugs are no longer being enforced

➡ How a combo of GLP-1 and GIP may be even more revolutionary for weight loss

➡︎ Why most people have to take these drugs for life

➡︎ Why people get so angry when people lose weight on GLP-1s

➡︎  How GLP-1 drugs are going to make weight-loss surgery extinct

📕 Chapters

(0:41) The non-weight loss benefits from GLP-1 use

(4:55) Getting the dosage right

(7:24) Drugs of the future

(11:09) How to get started on a weight-loss injection

(16:38) Why restrictions on weight loss drugs are being lifted

(19:46) Why people get mad about GLP-1 use

(23:57) Do you have to take these drugs for life?

(27:55) Do fat cells have memory?

(29:25) What if you want to stop GLP-1 use?

(31:48) The mental health drawbacks of weight loss drugs

(35:44) Unique insights from Spencer’s time with patients

(38:47) Is excessive muscle loss really a big problem?

(42:46) Should everyone be taking GLP-1s?

(45:14) Will weight loss surgeries go extinct?

(49:11) GLP supplements are a scam

📱 Connect with me:

TikTok: https://www.instagram.com/drkaranrajan

YouTube: https://www.youtube.com/@DrKaran 

Instagram: https://www.tiktok.com/@dr.karanr

📱 Connect with Spencer:

Instagram: https://www.instagram.com/drnadolsky/ 

X: https://x.com/DrNadolsky  

🔥 Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.beehiiv.com/subscribe

🔥 For more useful science for your everyday life, grab my best selling book “This Book May Save Your Life”: https://geni.us/DrKaranBook 

🎙️ An OG Podcasts production.

💬 Ro Huntriss is a world-leading fertility expert, recently crowned ‘Best Fertility Dietitian’ by The European Fertility Society. She has extensive experience in women’s health and is also the author of Deliciously Healthy Fertility.

⚡️In this episode Ro and I discuss the incredible power we have to influence our own ability to conceive (for both women and men) and improve the health outcomes of our children - simply by focusing on the food we eat.

🎧 Stay tuned to find out:

➡ Fertility friendly foods - and what to avoid for better conception

➡︎ What DNA fragmentation has to do with male fertility and sperm quality

➡︎ About the rise of ‘Ozempic babies’ and how GLP-1 agonists impact fertility

➡︎  The evolving role of microbiome research in fertility

➡︎ Which supplements actually work

📕 Chapters

(0:41) Fertility award winner

(1:51) How men are involved in fertility

(4:44) Why is infertility so common?

(6:34) Fertility friendly foods

(8:18) Dietary reasons for low fertility

(10:09) Fertility and the microbiome

(18:14) Supplements for fertility

(24:14) Testing your fertility

(28:43) How your diet improves your child’s long-term health

(30:36) Advice for chronic conditions like endometriosis

(35:52) Ozempic babies

(40:29) Dr Karan’s Ozempic prediction

(42:38) What you should STOP doing for fertility

(45:24) Diet impact on pregnancy related complications

(47:00) Improving fertility can be simple

📱 Connect with me:

TikTok: https://www.instagram.com/drkaranrajan

YouTube: https://www.youtube.com/@DrKaran 

Instagram: https://www.tiktok.com/@dr.karanr

📱 Connect with Ro:

Instagram: https://www.instagram.com/fertility.dietitian.uk/

Website: https://dietitianro.co.uk/ 

🔥 Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.beehiiv.com/subscribe

🔥 For more useful science for your everyday life, grab my best selling book “This Book May Save Your Life”: https://geni.us/DrKaranBook 

🎙️ An OG Podcasts production.

💬 Dr  Megan Rossi, aka The Gut Health Doctor, is an award‑winning dietitian and nutritionist with a PhD in gut microbiome science. She's the founder of The Gut Health Clinic and the Bio&Me food brand. She’s also a Sunday Times bestselling author, dedicated to translating cutting-edge gut research into practical, real‑world health advice.

⚡️In this episode, Megan and I dive into the science of gut health, exploring how your gut influences everything from mood and immunity to skin and sleep… and what you can do to improve it.

🎧 Stay tuned to find out:

➡︎ How your gut health impacts your mood, energy, skin, and overall wellbeing

➡︎ Why you need to eat 30 different plant-based foods per week

➡︎ Which fermented foods can naturally boost gut health

➡︎ The gut effects of artificial sweeteners and ultra-processed foods

➡︎ How stress, sleep, and movement affect gut health

📕 Chapters

(00:50) What’s so special about gut health?

(02:38) Don’t assume you’ve got a healthy gut

(04:42) Quickfire questions

(06:17) The importance of gut health

(09:16) Good bugs versus bad bugs

(12:06) Diversity is good for the gut

(14:23) The Super Six

(17:15) Should you restrict dairy?

(19:39) Probiotic foods and lactose intolerance

(23:05) Causes of bloating

(28:32) Fermented food benefits

(31:44) What’s the difference between probiotic supplements and fermented foods?

(35:22) Why fermented foods aren’t the answer for specific conditions

(37:26) Understanding the power of probiotics

(38:56) Can you trust off-the-shelf probiotics?

📱 Connect with me:

Instagram: https://www.instagram.com/drkaranrajan

YouTube: https://www.youtube.com/@DrKaran 

TikTok: https://www.tiktok.com/@dr.karanr

📱 Connect with Dr Megan Rossi:

Instagram: https://www.instagram.com/theguthealthdoctor

TikTok: https://www.tiktok.com/@theguthealthdoctor

🔥 Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.beehiiv.com/subscribe

🔥 For more useful science for your everyday life, grab my best selling book “This Book May Save Your Life”: https://geni.us/DrKaranBook 

🎙️ An OG Podcasts production.

💬 Alex Ruani is a doctoral researcher in diet-health misinformation at University College London. She studies how misinformation spreads, the potential harm it can do - and what techniques we should be using to stop it.

⚡️In this episode Alex and I discuss the rising influence of technology and artificial intelligence on fake news and the spreading of misinformation - including how I’ve recently become the victim of a deepfake scam.

🎧 Stay tuned to find out:

➡︎ Why social media platforms say misinformation is a “necessary weed”

➡ How misinformation online is leading to real life deaths

➡︎ How AI is getting so good at spreading misinformation - threatening democracy

➡︎ How one company used a Deepfake clone of ME to sell their supplements

➡︎  Why the CapCut issue opens up massive trust issues with tech companies

📕 Chapters

(0:58) How bad is misinformation right now?

(4:38) How easy it is to avoid spreading fake news

(7:19) Is misinformation research working?

(12:16) Why social media platforms don’t want to tackle misinformation

(17:14) How to avoid restricting free speech

(22:12) How I got Deepfaked

(32:24) The CapCut problem: Why you should read Ts&Cs

(40:47) We’re using ChatGPT wrong

(46:16) How AI is rotting your brain

📱 Connect with me:

TikTok: https://www.instagram.com/drkaranrajan

YouTube: https://www.youtube.com/@DrKaran 

Instagram: https://www.tiktok.com/@dr.karanr

📱 Connect with Alex:

Instagram: https://www.instagram.com/alexruani/ 

LinkedIn: https://www.linkedin.com/in/alejandraruani/ 

🔥 Get my free weekly newsletter filled with easy to action health tips, interesting facts and science to fill your curiosity: https://drkaran.beehiiv.com/subscribe

🔥 For more useful science for your everyday life, grab my best selling book “This Book May Save Your Life”: https://geni.us/DrKaranBook 

🎙️ An OG Podcasts production.