Redefining Strength Podcast

Cori Lefkowith
  • 4.9 (63)
  • FITNESS
  • UPDATED WEEKLY

You train hard. You try to eat well. You stay disciplined. And yet progress slows. Energy drops. Fat loss stalls. The Redefining Strength Podcast is for women who work hard on their health… but still feel like their body isn’t responding the way it used to. Hosted by Cori Lefkowith, founder of Redefining Strength, this show helps you understand what’s actually happening inside your body — and what to do about it. Cori is the creator of the STRONG System, used by over 10,000 women around the world to transform their bodies and build results that last. Through real coaching insights and conversations with leading experts in women’s health, metabolism, and behavior change...each episode breaks down the science in a way that actually applies to real life. Because the answer isn’t working harder. It’s learning how to work smarter so your effort finally creates the strength, energy, and confidence you’ve been chasing. If you’re ready to stop starting over and start building a body you can count on, this podcast will help you get there.

  1. 4D AGO

    The Problem With Only Trusting Yourself w/ Suzy Welch

    Most of us are told the answer is inside us. Trust your gut. Believe in yourself. Look inward. But what if that's only getting you halfway there? NYU professor, bestselling author, and host of the Becoming You podcast Suzy Welch reveals why real self-awareness requires more than internal reflection — and why the gap between who you think you are and how the world actually experiences you could be the hidden force behind your plateaus, your patterns, and your struggles to stay consistent. We get into why asking yourself if you're self-aware is the least reliable way to find out, how to close the gap between your values and the life you're actually living, and why the story you tell about yourself might be the biggest thing standing in your way. We also talk about the four forces quietly destroying your ability to live in alignment, why your personality isn't the words you use to describe yourself, and how one simple decision-making framework can change the way you approach everything from workouts to relationships to major life choices. If you've ever felt like you're doing all the right things but something still feels off — this one's for you. Topics covered: - Why you can't trust your own self-perception alone - The anonymized feedback tool that reveals how the world really sees you - The difference between your values and your virtues (and why it matters) - The 4 forces destroying your ability to live by your values - How to stop living by default and start living by design - The 10-10-10 decision making framework

    43 min

  2. 6D AGO

    Abs ARE NOT Made In The Kitchen, Muscle IS NOT Built in the Gym

    Think "abs are made in the kitchen" and "muscle is built in the gym" are the keys to your dream body? These popular fitness mantras might actually be the reason you're stuck in a frustrating cycle of yo-yo dieting, rebound weight gain, and zero progress.In this episode, I'm breaking down why obsessing over just nutrition OR just training is secretly sabotaging your results...and what to focus on instead to finally achieve the body recomp you've been chasing. You'll learn: - Why a calories-in-calories-out mentality leads to metabolic adaptation and rebound - Why your workouts should NEVER be about fat loss - The #1 reason "hard gainers" can't build muscle (hint: it's not your genetics) - How to stop doing "everything right" and still getting nowhere - Why what worked before might be destroying your progress nowStop blaming your willpower. Start making your nutrition and training work together.

    8 min

  3. MAR 19

    Metabolism, Cortisol & Hormones: What Women Get Wrong | Dr. Aviva Romm

    Most women are tracking everything...their sleep, their stress, their steps, their food...and still feel exhausted, overwhelmed, and like their body is working against them. Yale-trained MD and New York Times bestselling author Dr. Aviva Romm says the problem isn't your data. It's that you've stopped trusting yourself. In this episode, Dr. Romm breaks down why metabolic flexibility —not more optimization — is the real key to lasting health, strong hormones, and aging well as a woman. We get into why cortisol isn't the enemy (and what actually happens when you chronically suppress it), how your menstrual cycle should be shaping your training, and why high-performing women are often the last ones to listen to what their body is telling them. We also talk about the quiet strength in setting boundaries, why willpower isn't a character trait, and how to stop "shoulding" on yourself and actually build habits that stick. If you've ever pushed through exhaustion, ignored your body's signals, or wondered why doing more keeps leaving you feeling like less — this one's for you. Topics covered: - What metabolic flexibility actually means and why it matters for women - The truth about cortisol and why demonizing it is making things worse - How to train smarter across your cycle - Why your fitness tracker might be working against you - Boundaries, burnout, and the real cost of always saying yes - How to build habits from want-to instead of should Connect with Dr. Aviva Romm: avivaromm.com | @dr.avivaromm on Instagram

    50 min

  4. MAR 16

    20 Brutal Fat Loss Truths Most Women Don’t Follow

    There’s a moment almost everyone hits in their fat-loss journey... and if you’re here, I’m willing to bet you’ve hit it too. It’s that moment where you’re doing the workouts… eating healthy… trying to be consistent… trying SO hard to “do everything right”… And then you catch your reflection in a window…and your stomach just drops. So you check. You snap a progress photo.You look at the scale. You take your measurements.And instead of feeling proud, you feel that same heavy frustration wash over you. Because the only thought running through your head is: “How am I working this hard… and STILL not seeing anything change?” And then...just to make it sting a little more...you open social media and see someone else’s transformation and think, “Why is it working for them… but not for me?” And the spiral begins. “Is it my age?” “Is it my hormones?” “Is my metabolism broken?” “Is something wrong with ME?” If you’ve ever had that moment… You’re not crazy. You’re not broken. And you’re definitely not alone. Here’s the part no one ever told you and I promise you, this is going to shift everything: The reasons you’re stuck have nothing to do with discipline…and everything to do with 20 hard truths. These are truths I learned the hard way. These are truths that would’ve saved you YEARS of frustration.Truths that finally make fat loss make SENSE. Truths that show you your body doesn’t hate you  you’ve just been following the wrong roadmap. Once you hear them, everything clicks. So let’s jump in and look at 20 Brutal Fat Loss Truths Most Women Don’t Follow

    29 min

  5. MAR 12

    What Your Doctor Isn't Telling You About Perimenopause & Strength W/ Dr. Jolene Brighten

    If you've ever felt dismissed, confused, or completely blindsided by the changes happening in your body, this episode is for you. Dr. Jolene Brighten, hormone expert and women's medicine advocate, is pulling back the curtain on everything the medical system hasn't told you about perimenopause, strength, and reclaiming your health. From the brain remodeling that happens during perimenopause to why your old dieting strategies are making your hormones worse, Dr. Brighton breaks it all down in a way that finally makes sense. In this episode we cover: Why strong doesn't mean doing it all alone and how to stop wearing that as a badge of honorThe real reason your brain feels different in perimenopause and what you can actually do about itWhy strength training is non-negotiable right now and what happens to your hormones when you skip itThe framework for nutrition that supports your hormones, muscle, and metabolismHow to stop giving your power away and start being the expert in your own bodyThis is the conversation your doctor should be having with you but probably isn't.

    57 min

  6. MAR 10

    The "BEST" Exercise and Macro Ratio

    Are you stuck chasing the “best” workout, the “best” macro ratio, or the “best” food for fat loss? In this episode, I’m breaking down why constantly searching for the perfect tactic is often the exact thing keeping you stuck. Because the truth is, there usually isn’t one magic move, one perfect macro split, or one ideal food. Results come from how everything works together within your lifestyle, your goals, and your current season of life. In this episode, I talk about: Why focusing on one “best” tactic can make you miss the bigger pictureThe difference between what is ideal in theory and what is actually realistic for youWhy “good enough” can help you build momentum instead of fueling the all-or-nothing cycleHow age, recovery, activity level, and life stress can change what your body needsWhy nutrition recommendations are never one-size-fits-allHow to stop chasing perfection and start building a plan that actually works for your body and your life If you’ve ever felt frustrated by starting over, overwhelmed by conflicting advice, or like you’re doing all the “right” things but still not seeing results, this episode will help you shift your mindset and focus on what really moves you forward. Because lasting results don’t come from finding the perfect tactic. They come from understanding your reality, owning where you are right now, and building from there.

    12 min

  7. MAR 5

    Don’t Let Menopause Slow Your Metabolism: How to Lift, Sprint Hard & Fuel w/ Dr. Stacy Sims

    Menopause doesn't have to mean a slower metabolism, stubborn belly fat, or feeling like your body betrayed you. In this interview Dr. Stacy Sims—world-renowned exercise physiologist, nutrition scientist, and author of ROAR and Next Level—breaks down exactly why traditional advice (endless Zone 2 cardio, fasting, calorie restriction) backfires for women in perimenopause and menopause... and what actually works to rev your metabolism, build resilient strength, and thrive. We dive deep into: -Why sprints and heavy lifting (low reps, high intensity) create powerful metabolic signaling -The truth about fueling: More protein + carbs (not less), nutrient timing, and why "calories in, calories out" is outdated for women -How hormone shifts affect insulin sensitivity, glucose use, visceral fat, and brain health...and how to counter them with smart training -Shifting from "loss" to "gain": Build muscle, power, and metabolic health instead of shrinking or slowing down -Practical tips: Less volume/more quality, recovery, mobility, creatine, and mindset shifts for midlife resilience If you're a woman 40+ feeling the "rules changed" and wondering why your old routines aren't delivering results anymore, this episode is your reset. Dr. Sims empowers you to take up space, push hard, and feel stronger than ever. 00:00 Dr. Stacy Sims 05:05 Quality over volume (push hard, recover hard) 10:15 The Training Dogma Women Get Wrong (and why) 13:55 Sprint Intervals: the Metabolic + Brain Upgrade 18:42 Heavy Lifting for Power, Fast-Twitch & Healthspan 26:26 DEXA + Labs: the wake-up call for endurance athletes 34:33 Why Calories in vs. Calories out Fails 40:13 The importance of Creatine 50:21 The importance of Sleep Connect with Dr. Stacy Sims: Website: https://www.drstacysims.com Instagram: @drstacysims Books: ROAR & Next Level Subscribe for more science-backed women's health, midlife fitness, and menopause empowerment! #Redefiningstrength #Menopause #Perimenopause #Metabolism #WomensFitness #StrengthTraining #DrStacySims #MenopauseWeightGain #SprintTraining #HeavyLifting #HormoneHealth

    1h 13m

  8. MAR 3

    GLP-1..."Asking for a friend."

    If we’re going to talk about GLP-1s…Let’s stop whispering. And let’s ditch the shame. I bring this up after sharing a GLP-1 resource on Facebook and seeing people comment "asking for a friend." Using a medical tool to improve your health isn’t a character flaw. It’s not laziness. It’s not weakness. And choosing not to use one? That’s valid too. You don’t get a medal for suffering. And you don’t lose integrity for getting support. What actually moves you forward is being informed…and choosing the path that aligns with your goals, your lifestyle, and your reality. But informed means understanding the trade-offs. So let’s own what this medication is - and what it isn’t. GLP-1s suppress appetite. That’s their job. Appetite suppression alone does not build the physique, strength, or metabolic resilience most people actually want. They don’t build muscle. They don’t selectively burn only fat. They don’t stimulate hypertrophy or magically optimize your metabolism. Muscle is built with tension. With progressive overload. With enough fuel and enough protein to support growth. And building muscle is one of the most powerful ways to support long-term metabolic health. When calories drop quickly (especially without strength training) lean mass loss is common. Rapid weight loss without muscle retention is not the same thing as improving body composition. That’s not judgment. That’s physiology. So if you choose to use a GLP-1 and you want to look strong, defined, and athletic? You need intentional strength training. You need adequate protein. You need to give your body a reason to keep its muscle. And if you choose not to use one? The fundamentals are still the same. Intentional training. Adequate protein. Consistency over time. Different paths. Same principles. What matters most is ownership. Being able to say: "This is the route I’m choosing." "I understand what it does - and what it doesn’t." "I’m committed to building the result I actually want." No shame. No defensiveness. No pretending either choice is morally superior. Just informed decisions with high standards. Open conversations lead to smarter strategies. And muscle - real muscle - is always built on purpose. If you’re using a GLP-1, or considering it, hit reply with GLP-1 here's a guide on how to maintain muscle and metabolic health while doing it: https://drive.google.com/file/d/1VCuyUsZVZvD-AN0WFyjxAzYTMu3JWkTT/view?usp=sharing

    14 min
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4.9
out of 5
63 Ratings

About

You train hard. You try to eat well. You stay disciplined. And yet progress slows. Energy drops. Fat loss stalls. The Redefining Strength Podcast is for women who work hard on their health… but still feel like their body isn’t responding the way it used to. Hosted by Cori Lefkowith, founder of Redefining Strength, this show helps you understand what’s actually happening inside your body — and what to do about it. Cori is the creator of the STRONG System, used by over 10,000 women around the world to transform their bodies and build results that last. Through real coaching insights and conversations with leading experts in women’s health, metabolism, and behavior change...each episode breaks down the science in a way that actually applies to real life. Because the answer isn’t working harder. It’s learning how to work smarter so your effort finally creates the strength, energy, and confidence you’ve been chasing. If you’re ready to stop starting over and start building a body you can count on, this podcast will help you get there.

Information

  • Creator
    Cori Lefkowith
  • Years Active
    2016 - 2026
  • Episodes
    351
  • Rating
    Clean
  • Copyright
    © 2026 Redefining Strength LLC
  • Show Website
    Redefining Strength Podcast

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