Fitness Myths Busted: The Cardio, Crunches & Curls Edition

by | Jun 22, 2025 | Training

You’ve heard the claims. You’ve maybe even believed a few. Fitness myths are like that weird protein bar at the back of your pantry — they won’t die and everyone has an opinion about them. So let’s have a little fun while we crush three of the biggest myths in fitness like an overconfident bro lifting too much weight on leg day.

🚫 Fitness Myth #1: “Cardio is the only way to lose fat!”

AKA: “If I’m not drenched in sweat after 60 minutes on the treadmill, did I even work out?”

Reality Check: Cardio can help with fat loss, but it’s not the magic ticket. The real MVP? Your overall calorie balance and a mix of resistance training + cardio + nutrition. That’s right — abs are made in the kitchen and shaped in the gym.

Also, your body adapts to cardio. If all you do is jog for hours on end, you’ll burn fewer calories over time doing the same amount of work. And don’t even get us started on what happens to your muscle mass when you skip strength training. Think “soft spaghetti noodle” instead of “firm fettuccine.”

👉 Science Says: Strength training increases lean muscle, which boosts your resting metabolism. Translation? You burn more calories sitting on your couch watching Netflix. #EarnThatPopcorn

🎯 Fitness Myth #2: “You can spot reduce fat by working that area.”

AKA: “Just do 1,000 crunches a day and your muffin top will disappear!”

Reality Check: Sorry, but your body is not a vending machine — you can’t just punch in “A5” and have it drop fat from your love handles. Spot reduction is a myth that refuses to die, mostly because it feels like it should be true.

Yes, you can target muscles to strengthen them. But you can’t decide where your body will burn fat first. Your genetics are in the driver’s seat on that one. (Spoiler alert: They probably aren’t taking requests.)

👉 Science Says: When you create a calorie deficit and build lean muscle, your body will burn fat from all over — eventually from those stubborn spots. So keep training smart, and put the ab rocker back where it belongs: the 1990s.

💪 Fitness Myth #3: “Women will get bulky if they lift weights.”

AKA: “I just want to get toned, not turn into the Hulk!

Reality Check: Bless this myth’s heart. First of all, building significant muscle mass takes time, intentional nutrition, and usually a big boost in testosterone — something females don’t produce in large amounts. So no, you’re not going to “accidentally” wake up jacked after your 3rd session of goblet squats.

Want to feel strong, look sculpted, and actually change the shape of your body? Lift weights. Want to look “toned”? That’s muscle + lower body fat. You can’t get that from 3-pound dumbbells and a prayer.

👉 Science Says: Women who strength train consistently improve bone density, reduce injury risk, boost metabolism, and yes — build a strong, confident body. You’re not getting bulky. You’re getting awesome.

🧠 The Bottom Line About Fitness:

Don’t let old-school gym folklore sabotage your progress.
✔️ Cardio is great — but strength training is essential.
✔️ Crunches don’t burn belly fat — a balanced plan does.
✔️ Women won’t bulk up — but they will build badass strength.

So the next time someone tells you to “just do more cardio,” or that “lifting heavy is for dudes,” smile politely… and then outlift them. With good form, of course. 😉

Ready to ditch the myths and train smarter?
Let us know the worst fitness myth you’ve ever heard — or better yet, one you used to believe! We’ve all been there. Now let’s laugh about it and lift something heavy.

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Complete Performance LLC, located in Circle Pines, MN and founded by husband-wife duo Jordan and Brian, helps families thrive through fitness, nutrition, and youth sports training.

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