The Real Reason You're Not Losing Weight in Your 40s (Hint: It's Not Cardio)

If you’ve been doing more cardio and still not seeing the results you want, this episode is for you. Fitness expert Dr. Anne Brady explains why strength training, not cardio, is what your body actually needs after 40.

Listen to the episode here…

More Cardio Isn’t the Answer

If you’ve ever thought “I just need to do more cardio to lose weight,” you’re not alone. A lot of people think that way.

But Dr. Anne Brady, a fitness expert with a PhD with UNCG Kinesiology, says that if you’re in your 40s and trying to lose weight and get healthy, cardio isn’t your best investment. Strength training is.

That might not be what you expected to hear. But once you understand why, it makes total sense.

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Why Muscle Mass Is the Key

Here’s the thing about muscle that most people don’t realize. Muscle is metabolically active. That means it burns calories even when you’re not working out.

The more muscle you have, the more your body naturally burns throughout the day. That makes losing weight easier and keeping it off more realistic long-term.

Cardio burns calories while you’re doing it. Strength training builds muscle that burns calories around the clock. That’s a significant difference.

What Strength Training Actually Means

If the words “strength training” conjure up images of powerlifters or intimidating weight rooms, let’s clear that up right now.

Strength training simply means working your muscles against resistance. That includes bodyweight exercises like squats and push-ups. It includes dumbbells, kettlebells, or machines. It doesn’t have to be complicated. It doesn’t have to be heavy.

The key word Dr. Brady uses is consistency. Two to three times a week, every week. Not a quick 12-week program you abandon. Just regular, manageable sessions that challenge your muscles in a way that works for you.

It’s About So Much More Than Weight Loss

Muscle isn’t just about metabolism and burning calories. It’s about function.

Dr. Brady makes this point clearly. Muscle is what lets you carry groceries, climb stairs, get up off the floor, keep up with your kids or grandkids, and move through your life without fear or injury.

In your 40s, protecting that function is everything. You want to stay capable and strong for decades to come. Strength training is how you do that.

The Other Benefits of Lifting Weights

Beyond weight loss and function, Dr. Brady highlights several other reasons strength training matters.

It improves how your body handles blood sugar. It supports better energy levels. It helps regulate the hormones that influence hunger and stress. And as you get stronger, every other type of movement, including cardio, gets easier.

Strength training makes your whole fitness life better. Not just the part where you’re lifting weights.

Where to Start If You’re Brand New

Dr. Brady has simple advice for beginners. Focus on frequency before intensity.

Start with two full-body sessions per week. Include exercises that work both your upper and lower body. Make it feel routine before you start pushing yourself harder. Then, once you’re comfortable, you can add heavier weights, more reps, or more complex movements.

Consistency comes first. Intensity comes later. That’s the whole plan.

Ashley’s Story: From Dumbbell Avoider to Dumbbell Lover

Ashley admits in this episode that she absolutely did not want to lift weights when she started her fitness journey. Her instructor Rhonda wasn’t sure she’d ever get Ashley to pick up a dumbbell.

But she did. And now she’s working toward those 20-pound dumbbells.

More than that, she says that including strength training has made a real difference. She feels stronger. She has more endurance. Her overall fitness has improved in ways she didn’t expect.

If Ashley could go from actively avoiding weights to genuinely loving them, there’s hope for all of us.

The Simple Framework to Get Started

Dr. Brady wraps things up with clear, no-fluff advice.

Start simple. Stay consistent. Build from there.

Two or three strength sessions per week. Full-body movements. Work muscles in both upper and lower body. Once that feels like routine, increase the challenge.

That’s the whole plan. No extreme programs. No complicated schedules. Just showing up and doing the work, a couple of times a week, every week.

Action Items

Aim for two to three strength training sessions per week
Start with bodyweight exercises if you’ve never lifted before, squats, lunges, push-ups, and rows are great starting points
Focus on building the habit first, worry about intensity later
If you have access to dumbbells, start light and increase gradually
Remember that any strength work is better than none