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 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.
Episodes
347 episodes
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...
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57:29
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.Beca...
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11:54
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...
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1:12:53
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 impro...
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13:40
The Hidden Signs of Perimenopause (And How to Fix Your Hormones) | Dr. Amy Shah
The Hidden Signs of Perimenopause (And How to Fix Your Hormones) | Dr. Amy ShahAre 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 n...
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34:45
5 Truths to Build Muscle & Boost Metabolism After 40 (Stop Blaming Your Age!)
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 direct...
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12:43
Beyond Good vs. Bad Habits
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 relyi...
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32:12
Stop Trying to Shrink! Being STRONG Is So Much Better Than Being Small (w/ Tara LaFerrara)
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 "su...
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46:37
How to Build Real Strength Without Destroying Your Body (w/ Dr. John Rusin)
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 i...
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1:02:00
Creatine, Protein, and Perimenopause: What Women Need to Know
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 hap...
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27:25
Train the System, Not Just the Body (The Mindful Body w/ Dr. Ellen Langer)
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+ yea...
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46:54
Why Going “All In” Keeps Making You Start Over
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 prog...
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28:32
Why Doing More Is Slowly Breaking Your Body (w/ Dr. Caleb Burgess)
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 b...
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53:51
Why Your Belly Fat Won't Budge (The 5 Golden Rules That Actually Work)
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 predicta...
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12:42
Why You Keep Starting Over (And The Habit System That Actually Works) with Gretchen Rubin
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 compl...
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52:38
MEAL PREP Tips & Tricks (That Actually Work in 2026!)
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 su...
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20:41
NEUROSURGEON: You're NEVER Too Old To Build Strength & Lift Weights (with Dr. Betsy Grunch aka ladyspinedoc)
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...
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49:10
THE 1% FIX: Breathing & Core Strength (w/ Docjenfit)
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% fi...
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35:23
Stop Sabotaging Yourself
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.
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39:47
Create Better Daily Habits During The Holidays
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.
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31:29
How To Stop Holding Yourself Back
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 succes...
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10:21
Celebrate The Small Wins
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.
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35:31
Stop Trying To Be Perfect
Cori discusses how the quest for perfection can hinder progress with health and fitness goals.
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8:11