Sounds backwards, right? But here’s the thing, your body in your 40s has changed. Your practice hasn’t.

That’s why the flows you’ve been loyal to for years… suddenly don’t work the way they used to.

They feel nice in the moment, but you’re not seeing strength, tone, or stamina stick around.

Here’s the shift: You don’t need more yoga. You need the RIGHT kind of yoga.

👇 This is where your yoga practice finally clicks with your changing body.

What if your yoga practice is the reason you’re not getting stronger?

Introducing....

fortify40 2.0

A 6-week strength-based yoga program for women in their 40s who want to build muscle, keep their strength, and feel supported as they age.

Yep. All with just 2 focused sessions per week.

Fortify40 2.0 isn’t about starting from scratch.
It’s about building on what’s working, and and finally seeing progress you can feel.

⚡️ Build muscle and strength - with progressive, strength-based yoga sequences that layer week by week

⚡️ Practice with intention - no more random YouTube flows that don’t add up to anything

⚡️ Improve stability, keep your joints happy, and maintain strong, capable muscle tissue as you move through midlife

This round is designed for women who already know yoga feels good… but are ready for a structure that actually works HARDER for them.

Less guessing. More clarity. And a plan that meets your midlife body exactly where it’s at - without burnout, overwhelm, or hustle.

Because building strength in your 40s isn’t about pushing harder.
It’s about practicing smarter.

JOIN FORTIFY40 2.0 TODAY

Still wondering if it works? These stories from women 40+ speak for themselves.👇 💛

Why Strength Hits Different After 40?

Here’s the thing… once you’re in your 40s, your body doesn’t play by the same rules anymore.

🙄 You probably already feel it: muscles that aren’t quite as firm, stiffness that takes longer to shake off, recovery that drags out a bit more than it used to.

🙄 And sometimes it feels like your mind is running circles around itself while your body’s quietly saying, “Hey, we need a new plan here.”

That’s not failure. That’s biology.

Women naturally lose about 3–5% of muscle per decade after 40 if we don’t do something about it.

And muscles? They’re not just about looking toned in a tank top {though, sure, that’s nice too}.

They’re about keeping your metabolism steady. Supporting your bones. Helping you recover faster, move with more ease, and feel capable in your own skin.

Bottom line?

enroll today

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enroll today /

Muscles matter, and it takes more than random flows to keep them strong.

What your body needs now isn’t endless workouts. It’s focused ones.

Yoga that challenges you to build and keep muscle, and proving that strength doesn’t have to come with burnout.

That’s why I built Fortify40 2.0.

Two sessions a week. Progressive. Intentional. Enough to create real change.

No grind. No guilt. Just a structure that pushes you where you need it, and shows you, week by week, that your body is still strong, capable, and changing for the better.

INTRODUCING…

fortify40 2.0

A 6-week strength-based yoga program for women in their 40s who want to build muscle, keep their strength, and feel supported as they age.

START YOUR 6 WEEKS STRENGTH JOURNEY TODAY

The full course breakdown

Cinzia C., 45

“I’m not sure you realize that your program is more than just another exercise program. You are providing a space for women who are at a transitional stage of their lives to learn to be accepting and kind to themselves, as well as build a healthy, strong body and mind.”

Tried-and-tested Method

Inside Fortify40 2.0, you’ll follow my #COREmethod framework, designed to make strength through yoga not just possible, but sustainable.

  • establish a practice you can actually stick with, even when life is full

  • follow a clear structure so you know exactly how your practice builds strength week by week

  • move through balanced sequences with the right intensity and volume to help you tone and feel change

  • build mental resilience and confidence as you show up for yourself, feeling more grounded in your own skin

pay in full

One payment of

$197

  • This program is designed to work with your schedule, not against it.

  • You’ll get 2 pre-recorded, strength-based yoga flows each week for 6 weeks. Practice them when it works best for you, morning, evening, or whenever you can roll out your mat.

  • Access the program anytime, anywhere through one simple online hub. Everything’s organized in one place, and you’ll also have a free app for easy use on the go.

  • Enjoy lifetime access to every class. Revisit flows as often as you like, at your own pace.

  • Choose from sessions of different lengths {some around 30 minutes, others closer to 45} so you can match your practice to your energy and your day.

  • Each week, I’ll check in with you personally to see how you’re doing, answer questions, and help troubleshoot anything that comes up.

  • You’ll also connect with a private community of women in their 40s who are on the same journey, a space for accountability, encouragement, and real conversation.

  • With this structure, you don’t have to worry about “falling behind.” You can take your time, repeat flows when you need to, and grow stronger at a pace that feels sustainable for you.

YES. I'M IN

 Includes Course Lifetime Access. Price in USD. 

You don’t have to figure it out alone.

See how other women in their 40s have built strength, confidence, and consistency inside Fortify40 2.0, and what’s possible for you too.

This program gives you everything you need to build consistency, tone your body, and get stronger, with the guidance and accountability to actually follow through.

grab lifetime access and begin building a practice that supports you for years to come.

A 6-week strength-based yoga program for women in their 40s who want to build muscle, keep their strength, and feel supported as they age.

fortify40 2.0
Get Instant Access and Take the First Step to a Stronger You! 🙋‍♀️

best offer

best offer

more Muscle. More Tone. Feel Good in Your Skin.

6 weeks. 2 days a week. 30-45 mins a day

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This 6-week program is split into 3 progressive phases with a total of 12 strength-based yoga flows. You’ll practice twice a week, a rhythm that’s challenging enough to spark change, but realistic enough to actually stick.


Start with the basics. The first flows focus on building a strong foundation through repetition and body awareness.


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Progress each week. Intensity gradually increases so you can build muscle, boost tone, and feel stronger without burning out.


Get guided support. Every recording breaks down the movements step by step, with alignment cues and modifications so you can practice safely at your level.


Hi, I'm your yoga teacher

Natalia Rennie

the 47-year old creator of fortify40 2.0 and founder of nataliarennie.com!

With 17 years of practice and 9 years as a professional yoga teacher, I’ve learned that real results come from a mix of consistency and smart intensity. That’s exactly what this program delivers.

I became a certified yoga teacher in 2016. At first, clients didn’t come easily. I focused on showing up, gaining hours, and sharpening my skills. Somewhere in that journey, I discovered my true passion: helping women feel stronger and more at home in their bodies.

Fast forward to today, I’ve taught more than 3,300 hours of classes and guided countless women in building strength, resilience, and confidence through yoga.

My promise to you? To help you create consistent habits that support your health, strengthen your body, and steady your mind, so you can move through midlife feeling capable, confident, and comfortable in your own skin.

is this course right for you

What's Included in fortify40 2.0?

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When you join, you’ll get instant access to a private membership site where all the program content and tutorial videos are organized in one place.


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Each week, 2 new classes are released on Tuesday, giving you structure and a steady rhythm to follow. All videos are simple to follow, mobile-friendly, and designed to fit into everyday, real life.


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Once a week, I’ll personally check in to see how you’re doing, answer your questions, and help troubleshoot if you get stuck.


And the best part? You’ll have lifetime access. Come back to the flows as often as you like, repeat the ones that work, and keep building strength and tone long after the 6 weeks are up.


“ I like how you explain how to execute the poses. It makes flowing very easy without actually looking at the screen.“ ~ Joanne, 38

Your satisfaction is my priority!

If you’re not happy with the program, NO stress. Just send me an email within 7 days of purchase, and I’ll issue a full refund within 24 business hours. No questions asked.

How do I know if this program is for me?

who is this for?

This program was created with you in mind if you’re…

  • A woman 40+

  • Navigating midlife shifts and ready to adapt your yoga + strength routine to match your body’s needs.

  • Feeling the impact of changing hormones and noticing your strength or muscle tone just isn’t what it used to be.

  • Not brand-new to yoga. You know the basics and want a program that takes you further.

  • Craving direction and consistency, but still need the freedom to practice on your own schedule.

  • Tired of random YouTube classes that feel good in the moment but don’t actually build lasting results.

  • Ready to commit to yourself, prioritize your health, and feel stronger in both body and mind.


Who is this not for?

This program isn’t for everyone, and that’s okay. It likely won’t be the right fit if:

  • You’re looking for quick fixes or instant results. This work is about steady, lasting change, not overnight transformation.

  • You’re not able {or willing} to carve out a couple of practices each week. Consistency matters more than perfection.

  • You’re closed off to trying new approaches. Progress requires a bit of curiosity and a willingness to experiment.

  • You know deep down you’re not ready to commit to yourself right now. This program only works if you show up for it.

  • You’re only interested in yoga for relaxation or stretching. Fortify40 2.0 is designed to build strength. The flows WILL challenge you.

  • You prefer live, in-person classes and don’t enjoy following along with guided online practices. This program is flexible and self-paced, but it is online.


  • Natalia has the most soothing voice and is incredible at describing the next movement.

    As somebody who has never practised yoga before this was important. But I always feel confident during the practice.

    Rebecca v.d. V., 38

  • Natalia’s classes are a superb combination of safe space and gentle encouragement.

    The fact that 20+ years later, I am still learning new things about my yoga practice, my body and its abilities and the relaxation yoga affords.

    Amy J., 43

  • Natalia creates a beautiful energy in the room for her students.

    I love the introspective beginning and end to the lessons.

    Doris G., 47

  • Your passion enthuses me.

    I like the more private setting, and I think your classes are very well structured.

    Leah G., 61

FAQ

  • If you’re completely new to yoga, this program isn’t the best starting point. And that’s okay.

    For true beginners, I recommend beginning with my Fortify40 1.0 program.

    ^^^It’s designed specifically for women who are brand new to the mat and want that extra layer of guidance and support.

    This program is better suited if you already have some experience {whether that’s just a little or years of practice}.

    Each session still gives you space to adapt, shift, or simplify, so your body leads, not your expectations.

    Because at the end of the day, progress doesn’t come from doing more.

    It comes from finding your version of enough.

  • This is such a common question, and honestly, such a valid one.

    Consistency matters, but it only works if the practice actually fits your life.

    That’s why the flows are intentionally on the shorter side {30–45 minutes}. It lowers the barrier to entry and makes it feel doable, even on full days.

    Now, the program calendar maps out a suggested rhythm of 2 classes per week.

    But here’s the truth: if 2 feels impossible right now? That’s okay.

    Start with 1. Show up once a week, and let it become something you want to return to, NOT another box on your to-do list.

    Because the best practice isn’t about perfection.

    It’s about creating space you can actually keep.

  • As soon as you enroll and complete your payment, you’ll be directed to the Stan Store to set up your personal login.

    From there, you can access the classes anytime on your laptop or desktop.

    If you’re an Apple user, you can also download the Stan Store app for easy access on the go. {For Android, the app is still in development, but don’t worry, everything works smoothly from your browser.}

    Once inside the Stan Store portal, you’ll find the entire library of classes waiting for you.

    This way, if you love having everything upfront and choosing what to practice, you can dive right in and follow your own rhythm.

    BUT, I also know structure can be super supportive, so each Tuesday, I’ll send you a gentle prompt with two suggested classes.

    That way, you can track your progress, stay on course, and move at a steady pace… without any pressure.

    Whether you prefer freedom, structure, or a mix of both, you’ll have everything you need to make the practice truly your own.

  • From the moment you join, you’ll have full access to the entire program, all of the yoga flows are there waiting for you.

    ^^^This is great if you like to explore freely and choose what feels good in the moment.

    That said, there’s a reason I send out two new classes every Tuesday. The program has been designed as a progressive journey, we start by focusing on your shoulders for a reason, then gradually build strength, mobility, and intensity week by week.

    It’s carefully layered so your body can adapt, grow, and feel the shifts safely.

    Because of that, I highly recommend that the first time you move through the program, you follow the classes in the order they’ve been programmed.

    After that, you’ll know the flows well enough to mix and match however you like.

    So whether you want structure, freedom, or both, you’ll have options, but the progression is there to set you up for real results.

  • This question comes up often, and for good reason. Your safety matters more than anything.

    Inside the closed group, you’ll have a space to ask questions about form and modifications, so you can practice in a way that feels safe and effective for your body.

    Each yoga flow also includes suggested modifications or alternatives, giving you room to adjust as needed.

    That said, if you’re dealing with chronic pain, ongoing injuries, very limited mobility, or you’re a true beginner who’s never practiced yoga before, this particular program may not be the right fit.

    In those cases, I’d recommend starting with something beginner proof {like Fortify40 1.0} until you’re ready for this next step.

    Because yoga should support your body, not strain it.

  • At the very least, you’ll want a comfy, non-slip yoga mat. It gives you a stable surface to move on, and keeps your practice safe.

    From there, props are optional but can make a big difference.

    A pair of yoga blocks can help you adjust postures and shift the intensity to meet your body where it’s at.

    And a yoga strap {or even a belt you already have at home} can be a wonderful support for deeper stretches.

    None of these are about “doing more”. They’re about making the practice feel more accessible, comfortable, and yours.

  • Every Tuesday for 6 weeks, you’ll receive two pre-recorded yoga sessions straight to your inbox.

    Here’s why that matters: if your goal is to see real changes in your bod {strength, flexibility, balance} it’s not about random classes here and there.

    It’s about following a systematic path that builds on itself, week after week.

    Sure, you could scroll YouTube or drop into a studio when your schedule allows. And that might give you a quick boost in the moment.

    But lasting results? Those come from a program that’s been thoughtfully designed to move you forward step by step.

    This is THAT program.

  • Consistency does matter when it comes to seeing results, BUT consistency doesn’t have to mean perfect.

    Each class is 30–45 minutes, and they’re pre-recorded so you can practice whenever it fits into your week.

    The program calendar is set up for 2 sessions per week, but if that feels like too much right now? That’s okay.

    Even showing up once a week can help you build rhythm, strength, and confidence.

    This isn’t about doing more. It’s about creating a pace you can actually keep.

  • We’ve all followed the occasional YouTube class {and yes, Adriene and Cassandra are amazing ✨}.

    BUT here’s the thing: when you’re on your own, there’s no real accountability.

    No one checking in. No one helping you stay consistent long enough to actually feel the shifts you’re craving.

    That’s where this program is different.

    When you join, you’ll be part of a private community of women where you can ask questions, share your wins, and stay connected.

    Every Saturday, I’ll personally check in, tracking your progress, answering your questions, and even recording a quick demo video if you need extra clarity.

    It’s about support and structure that carry you all the way through, so you don’t just start… you finish.

    And when you finish? That’s when the results show up:

    • more strength and muscle tone

    • better balance and mobility

    • deeper focus and clarity

    This isn’t just about doing yoga.

    It’s about building consistency, feeling proud of yourself, and seeing the changes that come from sticking with it.

  • I want you to feel confident stepping into this program, which is why I offer a 7-day money-back guarantee starting from the first day of the program on September 30th.

    If you find out within that first week that it’s not the right fit, you can request a refund and receive your full investment back. {You’ll also be removed from the membership portal if you decide to step away.}

    After the initial 7-day period, no refunds will be available, so my encouragement is to give yourself those first classes to truly feel into the program before deciding.

    Because when you commit and see it through, that’s when the shifts, strength, tone, mobility, focus, REALLY begin to show.

  • Send me an email at natalia@natalirennie.com. I’m happy to help. 💛

Still have questions >

email me

disclaimer

If you’re new to yoga, returning after a long break, or recovering from an injury or illness, please check in with your doctor or physical therapist before purchasing or practicing these classes online.

By joining, you acknowledge that you’re practicing at your own risk, and that Natalia Rennie cannot be held responsible for your personal experience.

These sessions are designed for educational purposes only. They are not intended to diagnose, treat, or cure any injury, illness, or condition.

As a consenting adult, please use your own judgment, listen to your body, and practice safely.