90% Healthy

Dr. Marco Altini joins Klaudia and Don for the deepest heart rate variability conversation the show has done yet. Marco holds a PhD cum laude in applied machine learning, an M.Sc. in human movement sciences and high-performance coaching, has published more than 50 papers and patents at the intersection of physiology and technology, co-founded HRV4Training, advises Oura, guest-lectures at VU Amster...

We keep treating the 12 hallmarks of aging, like mitochondrial dysfunction, telomere shortening, epigenetic drift, and cellular senescence, as if they were the problem. JP Errico thinks they're symptoms. The real driver is upstream: the balance between your sympathetic and parasympathetic nervous system. JP is an MIT-trained engineer and co-inventor of non-invasive vagus nerve stimulation tech...

Jeffrey Turk has been inside the stem cell industry long enough to know where the bodies are buried — figuratively speaking. As a disabled veteran, NBC Operations Specialist, and founder of Mount Hydra, Jeff came into this space because stem cells were the only thing that helped him. What he found was an industry riddled with counterfeit products, dead cells dressed up in premium packaging, and a...

Klaudia's recent blood work came back with a surprise: her biological age clocked in 10 years younger than her real age, tracked across 100+ biomarkers by Mito Health. We brought in founder Kenneth Lou to break down exactly how that number is calculated, why the standard annual physical misses the markers that matter most, and how AI is making precision medicine accessible without a $20K clini...

Your Oura tracks your sleep. Your Whoop measures your strain. Your CGM watches your glucose. Your bloodwork sits in a PDF. And none of them talks to each other. In Episode 59 of the 90% Healthy Podcast, hosts Klaudia Balogh and Don Moxley sit down with David Korsunsky — founder and CEO of Heads Up Health — to unpack how AI is finally connecting the dots between wearables, lab results, and personal...

What if your heart rate variability score could tell you exactly how stressed, burnt out, or aligned you are? In this episode, we sit down with Salim Najjar (@ThatHRVGuy), a former nuclear power plant engineer turned HRV educator and nervous system coach. Salim broke down the science and the deeply personal story behind how he took his HRV from a baseline of 32 all the way to an overnight average...

If you track your HRV and the number won't move, this is the episode to listen to. Don Moxley has 8 years of HRV data. The day he started vagus nerve stimulation, his floors tripled and his ceilings doubled. He hadn't changed anything else. Povilas Sabaliauskas built the device that did it. A biomechanical engineer with a background in implantable neuromodulation, he spent years in operati...

The Harvard professor who studies Olympians says: If you have to choose between exercise and sleep, take the sleep. That's not an excuse to skip the gym. That's elite-level biology. This week on 90% Healthy, sports scientist Don Moxley and longevity journalist Klaudia Balogh broke down what it takes to perform at an Olympic level, and why blindly copying what elite athletes do will break m...

There are only a handful of physicians in the world practicing autonomic rehabilitation. One of them is on this episode. Klaudia Balogh and Don Moxley sits down with Dr. Raouf Gharbo, MD, Don's former Ohio State wrestling teammate, All-American, and one of the world's foremost experts in autonomic rehabilitation — the emerging field of training your nervous system to switch, shift, and recover on...

Muscle function matters more than muscle size, especially as we age. While most fitness conversations focus on building muscle mass and hypertrophy, the real predictor of longevity, independence, and injury prevention is functional strength. In this episode of the 90% Healthy Podcast, Klaudia and Don explore why power, balance, neuromuscular coordination, and fast-twitch muscle fiber activation ar...

We just wrapped up Year 1 of the 90% Healthy Podcast. After 50+ episodes, many world-class experts, and several hours of conversations on longevity, recovery, brain health, wearables, peptides, sleep, and metabolic optimization, this is what we believe may move the needle the most. In this episode, we reflect on: Why hyper-optimization can backfire The “0 to 10” framework for building real health...

Brain health is having a moment, and not by accident. Post-COVID burnout, rising dementia rates, mental health struggles, and chronic brain fog have pushed cognitive health to the center of the longevity conversation. But most people still don’t know what works . In this 1-year anniversary episode of the 90% Healthy Podcast , we sit down with Dr. Tommy Wood , neuroscientist, performance consultant...

Peptides are suddenly everywhere, from GLP-1 weight-loss drugs to recovery stacks, skincare, and “research-grade” compounds sold online. But what are peptides really? Which ones are proven? Which ones are dangerous? And why is the industry being called the Wild West right now? In this episode of the 90% Healthy Podcast , we sit down with Dr. Melissa Petersen , clinician, longevity strategist, and...

Most people think light therapy is about buying the brightest panel or sitting in a sauna longer. This conversation changes that. In this episode of the 90% Healthy Podcast , Don Moxley sits down with Robbie Bresser , co-founder and Chief Science Officer of TheraSage , to unpack why how light is delivered matters more than how much, and why many people unknowingly misuse light therapy. What starte...

Most people don’t need to “optimize” their sleep — they need to understand it . In this episode of the 90% Healthy Podcast , sleep scientist Dr. Dan Gartenberg (PhD, founder of SleepSpace) breaks down why so many disciplined, high-performing people still wake up tired, and why copying sleep hacks from friends, influencers, or wearables often backfires. We cover: Why sleep advice should never be on...

You know what to do. You’ve tried discipline, consistency, and self-control. So why does it still feel so hard? In this episode of the 90% Healthy Podcast , we speak with Jose Maresma , a nervous system–informed performance and wellbeing coach who works with physicians, first responders, elite athletes, and high achievers living under constant pressure. Jose doesn’t teach motivation. He teaches re...

This week on the 90% Healthy Podcast , Klaudia Balogh and Don Moxley break down one of the biggest nutrition policy shifts in decades — the newly released U.S. Dietary Guidelines — and what they actually mean for real people. For the first time, the guidelines prioritize real food, protein, fiber, full-fat dairy, fermented foods, and sugar reduction , while clearly calling out the risks of ultra-p...

New Year’s resolutions are a yearly ritual… and most people are back to square one by February. Let's not make that you! So we’re giving it a 90% Healthy twist : instead of chasing perfect goals, we’re giving you a 5-step toolkit that survives real life — travel, stress, chaos, low motivation, and “I’ll start Monday” energy. In this New Year’s Eve episode, Klaudia Balogh and Don Moxley break d...

Before you jump into a drastic January reset, juice cleanse, or extreme diet, this episode is worth your time. In this holiday-week conversation on the 90% Healthy Podcast , Klaudia Balogh and Don Moxley break down two new studies that challenge how we think about sustainable health behaviors—without hype or dogma. Study one looks at long-term data showing that consistent, meaningful volunteering...

Are humans actually built for the world we live in? In Episode 44 of the 90% Healthy Podcast, Klaudia and Don unpack two big themes shaping 2026: 1️⃣ A groundbreaking Swiss study revealing how our biology is mismatched with modern life 2️⃣ The new leadership traits every human (not just executives) needs to thrive in a rapidly changing world From collapsing fertility trends… to rising anxiety… to...

Are you still doing wellness trends that don’t actually move the needle? In this episode, Klaudia and Don break down the biggest health, fitness, and longevity trends that are officially getting kicked to the curb in 2026 —and what actually works instead. If you’ve felt overwhelmed by endless supplements, extreme routines, cold-plunge pressure, diet dogma, or grind-culture hustle… this episode is...

Did you know we’re entering a new era of longevity—one where strength training becomes medicine, recovery becomes a vital sign, and your smartphone can now do what a $300 scan used to? In this episode of the 90% Healthy Podcast , Klaudia Balogh and exercise physiologist Don Moxley break down the health, fitness, and biohacking trends that are actually here to stay in 2026 —and the ones that are qu...

For decades, accurate body composition meant expensive machines : DEXA, BodPod, InBody. Today, you can stand in front of your smartphone camera… and get near-clinical accuracy in under a minute. In this episode of the 90% Healthy Podcast , Klaudia and Don sit down with Jason Moore , Founder & CEO of Spren (and Elite HRV), to unpack how: 📱 A simple selfie can estimate: Body fat % Lean mass (yo...

Take your damn shoes off more often. Seriously. Your feet have more nerve endings than almost any other part of your body, and they quietly control your balance, posture, gait, and long-term joint health. When your feet get weak, cramped, or numb inside modern cushioned shoes… your knees, hips, and back pay the price. In this episode of the 90% Healthy Podcast , Klaudia Balogh and Don Moxley sit d...

“ Running fixes where junk food breaks the brain ”—that headline exploded across the internet. But is it true? We break down what the science really says about movement, mood, and longevity, and why that headline is misleading... In this episode of the 90% Healthy Podcast , Klaudia Balogh and Don Moxley dive into a fascinating new study showing how movement can repair the brain —even when diet isn...