Here’s something I say to almost every woman I work with.
If your current fitness routine is mostly cardio – the elliptical, the long walks, the spin class three times a week – and you’re wondering why your body just isn’t changing… it’s not because you’re not working hard enough.
It’s because you’re doing the wrong thing.
I know that can be a bit confronting to hear. But if you’re a woman over 40 who’s been showing up consistently, eating well, and still not seeing results – you deserve the actual truth, not another vague and misleading answer like “just move more and eat less”.
So here it is: your body needs heavy weights far more than it needs more cardio. And in this post, I’m going to break down exactly why – and once you understand it, it’ll shift the way you look at training completely.
The Problem
Most women I work with come to me after years of doing all the “right” things. Cardio. Lighter weights. Watching what they eat. They’ve tried the 12-week challenge, the boot camp, the early morning walks. Some things worked for a while, then stopped. Most things just left them exhausted.
Sound familiar?
The problem isn’t your effort or your willpower. The problem is that after 40 – and especially heading into perimenopause – your body has fundamentally changed. Oestrogen has started to decline. And oestrogen, among its many jobs, was quietly protecting your muscle mass for decades.
Without the right kind of training to counter that, more cardio just makes things worse. It burns you out, spikes your stress hormones, and can actually signal your body to hold onto fat and break down muscle for fuel – which is a big reason why menopause weight gain, especially that frustrating belly fat, feels so hard to shift no matter what you do.
And honestly, that’s a pretty deflating place to be.
5 Things Women Over 40 Need to Know About Lifting Heavy
- Muscle loss is the real problem and resistance training is the fix.
After 30, women can lose 3–8% of their muscle mass per decade. After menopause, that muscle loss accelerates. Less muscle means a slower metabolism – even if you haven’t changed what you’re eating. Cardio doesn’t fix this. Resistance training does. It’s genuinely the most powerful tool you have, and it’s the one most women over 40 aren’t using nearly enough. If you’re new to the idea, we wrote a whole post on what lifting heavy actually looks like for women — worth a read before you start.
- What will lifting actually do to your body? Here’s the honest answer.
Let’s move past the old “you won’t get bulky” reassurance – because honestly, that’s not the whole story, and some women do want to build significant muscle. That’s a completely valid goal.
Here’s the reality: building substantial muscle mass as a woman is genuinely hard. It requires years of very specific, very intentional training – progressive overload, high volume, dialled-in nutrition – and even then, it happens slowly. Your hormonal profile simply doesn’t support rapid muscle gain the way male hormones do. So if you’re just getting started with heavier weights, you’re not going to wake up one day looking like a different person by accident.
What does happen naturally with strength training is that you get stronger, more defined, and more capable – and your body composition shifts toward more muscle and less fat over time.
But here’s the thing worth sitting with: there’s often a real tension between the body that looks a certain way and the body that performs at its best. The leanest version of you isn’t always the healthiest version of you. Being one size bigger, with more muscle and more strength, might mean better energy, better bone density, better hormonal health – and a body that actually works brilliantly for decades to come. That’s a personal call only you can make. But it’s worth knowing that capability and appearance don’t always point in the same direction – and one of them tends to make you feel a whole lot better about being alive.
- Your bones are literally begging you to lift.
This one doesn’t get talked about enough. Bone density drops significantly during perimenopause and menopause – and weight-bearing resistance training is one of the most effective ways to protect it and reduce your risk of osteoporosis. Your bones respond to load – challenge them, and they get stronger. Don’t, and they get weaker. It’s that simple.
- Lifting works with your hormones, not against them.
Strength training supports healthy insulin sensitivity, helps regulate cortisol (your stress hormone), and can positively influence oestrogen and testosterone levels – all things that become more important as you get older. It also directly addresses that stubborn belly fat that tends to accumulate during menopause, which is driven largely by hormonal shifts and muscle loss, not just what you’re eating. Chronic cardio, on the other hand, tends to push cortisol up – which makes fat loss harder and energy levels worse.
- You don’t need to live at the gym.
Three sessions a week. 45–60 minutes each. That’s it. Focus on the big compound movements – squats, deadlifts, hip thrusts, rows, presses – and progressively challenge yourself over time. The last couple of reps should feel hard. That’s the point. That’s where the magic happens.
A Client Story
One of my clients – let’s call her Jo – came to me pretty defeated. She’d been doing cardio almost every day for two years. She was tired all the time, her body wasn’t changing, she’d noticed menopause weight gain creeping in especially around her middle, and she’d started to think maybe this was just “getting older.”
Within 10 weeks of switching to three strength sessions a week, Jo had more energy than she’d had in years. Her clothes started fitting differently. She stopped dreading workouts and started actually looking forward to them – because for the first time, she felt like she was getting somewhere.
What changed? She stopped fighting her body and started training for it. That shift makes all the difference.
Ready to Make the Switch?
More cardio is not the answer after 40. More muscle is.
Your body is genuinely capable of feeling stronger, leaner, and more energetic than it does right now – it just needs the right kind of challenge. Tackling muscle loss, improving bone density, and shifting that menopause belly fat doesn’t have to be complicated. You don’t need fancy equipment, a gym full of people who live to pump, or hours of your life back. You just need a smart program and someone in your corner.
If you’re ready to stop spinning your wheels and start training in a way that actually works for where you’re at – we’d love to have a chat. Book a free intro session and let’s figure out what your body needs.
Or if you’ve got questions, send them to support@strongwomencan.com we’re always happy to help.