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PODCAST

Redefining Strength Podcast

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

health & fitness fitness

All Episodes

13:40

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

Redefining Strength Podcast ·

2026/03/03

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 ch...

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34:45

The Hidden Signs of Perimenopause (And How to Fix...

Redefining Strength Podcast ·

2026/02/26

The Hidden Signs of Perimenopause (And How to Fix Your Hormones) | Dr. Amy Shah Are you feeling tired, struggling to recover from your workouts, or noticing changes in your body that you just can’t explain? You might be told it’s just a normal part of "getting older," but the truth is, hormonal shifts can actually start in your 30s! In this episode, I'm sitting down with Dr. Amy Shah to uncover the hidden signs of perimenopause that even doctors often miss. We dive deep into the powerful conn...

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12:43

5 Truths to Build Muscle & Boost Metabolism After 40...

Redefining Strength Podcast ·

2026/02/24

If you’ve been blaming your age for muscle loss, weight gain, low energy, or a slower metabolism this episode is for you. In this video, I break down 5 powerful truths about aging strong through perimenopause and menopause, pulled directly from expert discussions with leading voices in women’s health. You’ll learn why building muscle is non-negotiable, how underfueling is sabotaging your metabolism, why sprint and power work matter more than you think, how gut health affects fat loss, and w...

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32:12

Beyond Good vs. Bad Habits

Redefining Strength Podcast ·

2026/02/16

What if the problem isn’t that your habits are “good” or “bad” but that they no longer fit who you are or where you’re going? In this episode, we unpack a more nuanced approach to habit change. Instead of chasing perfect routines or relying on willpower, we explore how to audit your habits with curiosity, adjust your environment, and build systems that actually support your current goals. We talk about identity, autonomy, and why habits should evolve as you do...plus how to recognize when som...

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46:37

Stop Trying to Shrink! Being STRONG Is So Much Better...

Redefining Strength Podcast ·

2026/02/12

If you feel like you’re working out seven days a week just to get smaller but you still don’t feel confident, energized, or powerful in your own skin...this episode is for you. The truth is, society has conditioned us to believe that "success" means shrinking. We’re told that if we aren’t exhausted after every workout, it doesn't count. But real, lasting transformation happens when you stop trying to disappear and start focusing on what you can build. In this episode of the Redefining Stren...

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62:00

How to Build Real Strength Without Destroying Your...

Redefining Strength Podcast ·

2026/02/05

If you feel like your workouts are “working”… but your body constantly hurts, this episode is going to change the way you think about strength training. Because the truth is: most people don’t get injured because they’re weak. They get injured because they’re following programs that ignore how their body is actually built. In this episode of the Redefining Strength Podcast, I sit down with Dr. John Rusin. A world-renowned performance coach, physical therapist, and creator of the Pain-Free P...

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27:25

Creatine, Protein, and Perimenopause: What Women Need...

Redefining Strength Podcast ·

2026/02/01

If you’ve entered perimenopause and feel like your body suddenly isn’t responding the way it used to, you’re not imagining it and you’re not broken. I'm joined By Redefining Strength RD Michelle and we're breaking down what’s actually happening as hormones begin to shift and why strategies that once worked can suddenly fall flat. We cover the nutrition changes that matter most during perimenopause, including why protein becomes non-negotiable, how muscle loss and metabolic slowdown really hap...

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46:54

Train the System, Not Just the Body (The Mindful Body...

Redefining Strength Podcast ·

2026/01/29

We spend hours in the gym training our bodies...but what if most of us are training like robots? In this episode I sit down with Dr. Ellen Langer, Harvard psychologist and pioneer of mindfulness research, whose work over the last 45+ years has fundamentally changed how we understand the relationship between mind, body, and performance. In this conversation, Dr. Langer shares her groundbreaking work, including why "trying harder" can actually make progress harder and how noticing is your most...

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28:32

Why Going “All In” Keeps Making You Start Over

Redefining Strength Podcast ·

2026/01/26

If you’re a driven, disciplined, all-or-nothing person… this episode might sting a little. Because the truth is, the same “go all in” mindset that helps you succeed in other areas of life is often the exact reason your fitness progress keeps stalling, burning out, and restarting. In this episode, we break down why perfection feels like commitment — but actually destroys consistency. You’ll learn: Why rigid rules and “perfect weeks” make progress fragileHow the all-or-nothing mindset turns sma...

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53:51

Why Doing More Is Slowly Breaking Your Body (w/ Dr....

Redefining Strength Podcast ·

2026/01/22

If you’ve ever felt stuck between pushing harder and feeling worse… or doing less and feeling like you’re falling behind… this episode is for you. At some point, almost everyone hits this moment with their body. You get hurt. Or burned out. Or things just stop working the way they used to. And suddenly you’re stuck between two bad options: Do less and feel like you’re losing yourself… Or do more and keep breaking yourself. Most people bounce back and forth between those two for years. Not...

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12:42

Why Your Belly Fat Won't Budge (The 5 Golden Rules...

Redefining Strength Podcast ·

2026/01/19

If your belly fat hasn’t budged no matter how “disciplined” you are, this isn’t a motivation problem it’s a strategy problem. If what you were doing actually worked, you wouldn’t still be fighting the same area. The problem is a predictable loop most smart, driven people fall into: Go extreme → burn out → quit → start over with a new version of the same plan. You don’t lose stubborn fat by trying harder. You lose it by finally using a strategy that matches how your body actually works...one...

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52:38

Why You Keep Starting Over (And The Habit System That...

Redefining Strength Podcast ·

2026/01/15

Why You Keep Starting Over (And The Habit System That Actually Works) If you keep starting over with your workouts, nutrition, or routines and you’re starting to think the problem is your motivation or discipline, this episode will completely change how you think about habits. Because the truth is: willpower isn’t the problem. Most people are using a habit system that doesn’t match how they’re wired. And when that happens, even the best plan eventually falls apart. In this episode of the R...

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20:41

MEAL PREP Tips & Tricks (That Actually Work in 2026!)

Redefining Strength Podcast ·

2026/01/13

Learn how to meal prep in a way that actually fits your life and helps you hit your macros without stress. Cori and Redefining Strength RD Julia Stumpf break down simple, flexible, budget-friendly, and lazy-proof strategies to make meal prep sustainable, realistic, and effective — including how to plan for eating out and stop overcomplicating nutrition.

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49:10

NEUROSURGEON: You're NEVER Too Old To Build Strength...

Redefining Strength Podcast ·

2026/01/08

Can you still build serious muscle, increase bone density, and lift weights in your 40s, 50s, 60s, and beyond? A neurosurgeon says YES. In this powerful episode, I sit down with neurosurgeon and spine specialist Dr. Betsy Grunch to crush the biggest myth about aging: that decline is inevitable. You might have seen Dr. Grunch recently on the Mel Robbins Show. In this episode she shares her expert perspective on why strength training is vital for long-term health, spinal support, and prev...

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35:23

THE 1% FIX: Stop Forcing Your Posture & Use...

Redefining Strength Podcast ·

2026/01/01

You're training hard, but are you getting stronger? The secret to unlocking your real strength and finally breaking through plateaus isn't more weight or faster reps...it's slowing down, ditching your ego, and mastering the most important 1% fix in your life: your breath. In this powerful interview, I sit down with Dr. Jen, a physical therapist and movement expert, to redefine what "strong" actually means. We dive into the surprising truth that adaptation (modifying movements) actually makes...

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39:47

Stop Sabotaging Yourself

Redefining Strength Podcast ·

2025/12/25

Cori and Coach Michelle discuss how guilt, rather than holiday meals or missed workouts, often sabotages success by leading to a cycle of bingeing and restricting, which can result in weight gain and burnout. The video version of this episode is live on youtube!

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31:29

Create Better Daily Habits During The Holidays

Redefining Strength Podcast ·

2025/12/18

Cori and Coach Brooke discuss the strategies to maintain and build healthy habits during the holiday season, focusing on the importance of mindset for long-term success. The video version of this episode is live on youtube!

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10:21

How To Stop Holding Yourself Back

Redefining Strength Podcast ·

2025/12/11

Cori encourages listeners to embrace various forms of strength, such as the efficiency of work, the importance of asking for help, and the ability to adapt like bamboo or rise like a lotus from challenging situations. By recognizing past successes and different strengths, individuals can overcome current challenges and achieve their goals. The video version of this episode is live on youtube!

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35:31

Celebrate The Small Wins

Redefining Strength Podcast ·

2025/12/04

Cori and Coach Lizzie explore the concept of "good enough" as a key to achieving health and fitness goals and why there's an importance of moving away from an all-or-nothing mindset, celebrating smaller wins to build off of. The video version of this episode is live on youtube!

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8:11

Stop Trying To Be Perfect

Redefining Strength Podcast ·

2025/11/27

Cori discusses how the quest for perfection can hinder progress with health and fitness goals. The video version of this episode is live on youtube!

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